feat: add base file records' in-memory size to `FileStats`

[xushiyan]

Description

Extract parquet's row groups size bytes info and save it in hudi core model FileStats.

How are the changes test-covered

• [ ] N/A
• [x] Automated tests (unit and/or integration tests)
• [ ] Manual tests
  • [ ] Details are described below

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 87.79%. Comparing base (ce8f902) to head (96665a5). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #140 +/- ## ========================================== + Coverage 87.77% 87.79% +0.01% ========================================== Files 14 14 Lines 728 729 +1 ========================================== + Hits 639 640 +1 Misses 89 89 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.