[Bug]: 怀疑内存泄漏，过段时间就卡死

[lowking]

请确保您已阅读以上注意事项，并勾选下方的确认框。

• [X] 我已经使用一个干净且无其它非必要的插件的环境测试过，问题依旧存在。
• [X] 我已经在 Issue Tracker 中找过我要提出的问题，没有找到相同问题的ISSUE。
• [X] 我已知晓并同意，此处仅用于汇报程序中存在的问题。若这个 Issue 是关于其他非程序本身问题，则我的 Issue 可能会被无条件自动关闭或/并锁定。
• [X] 我已知晓并同意，如果我不按照模板提供的指示进行填写，则我的 Issue 可能会被无条件删除。

PagerMaid 版本 （或 Commit Id）

3ddd16b7449b2d9e2304301526f64889dba78be9

运行环境

Ubuntu

运行架构

x86

重现步骤

我安装了pmcaptcha，也就只用这个插件，但是过段时间机器人就没反应了，使用top查看发现内存占满了，怀疑程序出现内存泄漏

期望的结果是什么？

希望内存占用正常

实际的结果是什么？

内存占满了

简单的复现代码/链接（可选）

No response

日志记录（可选）

root@PagerMaid-pyro:/var/lib/pagermaid_pyro# cat /var/log/syslog
Feb  5 00:00:21 PagerMaid-pyro systemd[1]: logrotate.service: Succeeded.
Feb  5 00:00:21 PagerMaid-pyro systemd[1]: Finished Rotate log files.
Feb  5 00:00:33 PagerMaid-pyro systemd[1]: man-db.service: Succeeded.
Feb  5 00:00:33 PagerMaid-pyro systemd[1]: Finished Daily man-db regeneration.
Feb  5 00:47:01 PagerMaid-pyro CRON[6273]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 01:05:50 PagerMaid-pyro systemd[1]: Starting Ubuntu Advantage Timer for running repeated jobs...
Feb  5 01:06:04 PagerMaid-pyro systemd[1]: ua-timer.service: Succeeded.
Feb  5 01:06:04 PagerMaid-pyro systemd[1]: Finished Ubuntu Advantage Timer for running repeated jobs.
Feb  5 01:47:01 PagerMaid-pyro CRON[6286]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 02:26:50 PagerMaid-pyro systemd[1]: Starting Message of the Day...
Feb  5 02:26:50 PagerMaid-pyro systemd[1]: motd-news.service: Succeeded.
Feb  5 02:26:51 PagerMaid-pyro systemd[1]: Finished Message of the Day.
Feb  5 02:47:01 PagerMaid-pyro CRON[6293]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 03:01:01 PagerMaid-pyro CRON[6297]: (root) CMD (reboot)
Feb  5 03:01:02 PagerMaid-pyro postfix/pickup[6289]: 66311E8E: uid=0 from=<root>
Feb  5 03:01:02 PagerMaid-pyro postfix/cleanup[6300]: 66311E8E: message-id=<20240204190102.66311E8E@PagerMaid-pyro.localdomain>
Feb  5 03:01:02 PagerMaid-pyro postfix/qmgr[352]: 66311E8E: from=<root@PagerMaid-pyro.localdomain>, size=610, nrcpt=1 (queue active)
Feb  5 03:01:03 PagerMaid-pyro postfix/local[6302]: 66311E8E: to=<root@PagerMaid-pyro.localdomain>, orig_to=<root>, relay=local, delay=1.8, delays=1.1/0.24/0/0.5, dsn=2.0.0, status=sent (delivered to mailbox)
Feb  5 03:01:03 PagerMaid-pyro postfix/qmgr[352]: 66311E8E: removed
Feb  5 03:05:01 PagerMaid-pyro CRON[6305]: (root) CMD (test -e /run/systemd/system || SERVICE_MODE=1 /sbin/e2scrub_all -A -r)
Feb  5 03:47:02 PagerMaid-pyro CRON[6309]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 04:47:02 PagerMaid-pyro CRON[6313]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 05:37:50 PagerMaid-pyro systemd[1]: Starting Daily apt download activities...
Feb  5 05:37:51 PagerMaid-pyro systemd[1]: apt-daily.service: Succeeded.
Feb  5 05:37:51 PagerMaid-pyro systemd[1]: Finished Daily apt download activities.
Feb  5 05:47:01 PagerMaid-pyro CRON[6339]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 06:11:01 PagerMaid-pyro CRON[6343]: (root) CMD (test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ))
Feb  5 06:44:01 PagerMaid-pyro CRON[6406]: (root) CMD (   test -x /etc/cron.daily/popularity-contest && /etc/cron.daily/popularity-contest --crond)
Feb  5 06:47:01 PagerMaid-pyro CRON[6409]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 06:49:50 PagerMaid-pyro systemd[1]: Starting Daily apt upgrade and clean activities...
Feb  5 06:49:50 PagerMaid-pyro systemd[1]: apt-daily-upgrade.service: Succeeded.
Feb  5 06:49:50 PagerMaid-pyro systemd[1]: Finished Daily apt upgrade and clean activities.
Feb  5 07:21:50 PagerMaid-pyro systemd[1]: Starting Ubuntu Advantage Timer for running repeated jobs...
Feb  5 07:21:51 PagerMaid-pyro systemd[1]: ua-timer.service: Succeeded.
Feb  5 07:21:51 PagerMaid-pyro systemd[1]: Finished Ubuntu Advantage Timer for running repeated jobs.
Feb  5 07:47:01 PagerMaid-pyro CRON[6444]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 08:47:01 PagerMaid-pyro CRON[6449]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 09:47:01 PagerMaid-pyro CRON[6453]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 10:47:01 PagerMaid-pyro CRON[6458]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 11:47:01 PagerMaid-pyro CRON[6462]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 12:46:50 PagerMaid-pyro systemd[1]: Starting Message of the Day...
Feb  5 12:46:50 PagerMaid-pyro systemd[1]: motd-news.service: Succeeded.
Feb  5 12:46:50 PagerMaid-pyro systemd[1]: Finished Message of the Day.
Feb  5 12:47:01 PagerMaid-pyro CRON[6468]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 12:54:50 PagerMaid-pyro systemd[1]: Starting Daily apt download activities...
Feb  5 12:54:50 PagerMaid-pyro systemd[1]: apt-daily.service: Succeeded.
Feb  5 12:54:50 PagerMaid-pyro systemd[1]: Finished Daily apt download activities.
Feb  5 13:47:01 PagerMaid-pyro CRON[6494]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 14:04:50 PagerMaid-pyro systemd[1]: Starting Ubuntu Advantage Timer for running repeated jobs...
Feb  5 14:04:50 PagerMaid-pyro systemd[1]: ua-timer.service: Succeeded.
Feb  5 14:04:50 PagerMaid-pyro systemd[1]: Finished Ubuntu Advantage Timer for running repeated jobs.
Feb  5 14:47:01 PagerMaid-pyro CRON[6507]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 15:47:01 PagerMaid-pyro CRON[6512]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 16:47:01 PagerMaid-pyro CRON[6516]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Feb  5 17:35:13 PagerMaid-pyro systemd[1]: Created slice User Slice of UID 0.
Feb  5 17:35:13 PagerMaid-pyro systemd[1]: Starting User Runtime Directory /run/user/0...
Feb  5 17:35:13 PagerMaid-pyro systemd[1]: Finished User Runtime Directory /run/user/0.
Feb  5 17:35:13 PagerMaid-pyro systemd[1]: Starting User Manager for UID 0...
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Reached target Paths.
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Reached target Timers.
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Starting D-Bus User Message Bus Socket.
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Listening on GnuPG network certificate management daemon.
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Listening on GnuPG cryptographic agent and passphrase cache (access for web browsers).
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Listening on GnuPG cryptographic agent and passphrase cache (restricted).
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Listening on GnuPG cryptographic agent (ssh-agent emulation).
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Listening on GnuPG cryptographic agent and passphrase cache.
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Listening on REST API socket for snapd user session agent.
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Listening on D-Bus User Message Bus Socket.
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Reached target Sockets.
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Reached target Basic System.
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Reached target Main User Target.
Feb  5 17:35:13 PagerMaid-pyro systemd[6523]: Startup finished in 145ms.
Feb  5 17:35:13 PagerMaid-pyro systemd[1]: Started User Manager for UID 0.
Feb  5 17:35:13 PagerMaid-pyro systemd[1]: Started Session 82342 of user root.

补充说明（可选）

[lowking]

不知道是不是内存给太少了，旧版就没问题，我提升下内存试试看