### What problem does this PR solve?
- Update sync data source to handle metadata properly
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
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Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
### What problem does this PR solve?
Refine Confluence connector.
#10953
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
- [x] Refactoring