support send email with SMTPSSLTransport

[dongqiaoershao]

接入邮件服务发现只支持smtp（25端口），不支持smtps（465端口），估计可能会有一些使用者遇到类似的问题，故提个PR增加支持ssl方式，代码写得有点粗糙，希望该意见能得到采纳，感谢不吝赐教。

What's the purpose of this PR

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Which issue(s) this PR fixes:

Fixes #

Brief changelog

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Codecov Report

Attention: 21 lines in your changes are missing coverage. Please review.

Comparison is base (bc55ba6) 49.27% compared to head (2c0fe61) 49.48%. Report is 11 commits behind head on master.

Files	Patch %	Lines
...lo/portal/spi/defaultimpl/DefaultEmailService.java	0.00%	17 Missing :warning:
...ollo/audit/component/ApolloAuditLogApiJpaImpl.java	33.33%	1 Missing and 1 partial :warning:
...mework/apollo/audit/aop/ApolloAuditSpanAspect.java	96.87%	0 Missing and 1 partial :warning:
...k/apollo/portal/component/config/PortalConfig.java	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #5018 +/- ## ============================================ + Coverage 49.27% 49.48% +0.20% - Complexity 1889 1902 +13 ============================================ Files 372 372 Lines 11538 11564 +26 Branches 1123 1129 +6 ============================================ + Hits 5685 5722 +37 + Misses 5513 5502 -11 Partials 340 340 ```

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[nobodyiam]

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[dongqiaoershao]

I have read the CLA Document and I hereby sign the CLA

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This pull request has been automatically marked as stale because it has not had activity in the last 30 days. It will be closed in 14 days if no further activity occurs. Please feel free to give a status update now, ping for review, or re-open when it's ready. Thank you for your contributions!

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This pull request has been automatically closed because it has not had activity in the last 14 days. Please feel free to give a status update now, ping for review, or re-open when it's ready. Thank you for your contributions!