fix: fix the logic of data update time using meta.json

[andyhuang18]

Brief Information

This pull request is in the type of (more info about types):

• [ ] build
• [ ] ci
• [ ] docs
• [ ] feat
• [x] fix
• [ ] perf
• [ ] refactor
• [ ] test

Related issues (all available keywords):

• resolve #99

Details

• The previously set fixed time update data is very rigid, and currently the update can be controlled through meta.json data.
• Well...I hope the update speed at the beginning of each month can be faster...

Checklist

• [x] I have read the CONTRIBUTING doc

Others

[andyhuang18]

Hi @andyhuang18, in the changed files I didn't see any changes related to meta.json. Has the PR been ready or is it still in progress?

The original code logic will use meta.json, this PR deletes the previously set fixed-time update logic.