feat: update partition duration of memtable using compaction window

[evenyag]

I hereby agree to the terms of the GreptimeDB CLA.

Refer to a related PR or issue link (optional)

fixes #5098

What's changed and what's your intention?

This PR tries to create a new mutable memtable with the latest compaction time window. It sets the part_duration of the TimePartitions when a region freezes its memtables.

Checklist

• I have written the necessary rustdoc comments.
• I have added the necessary unit tests and integration tests.
• This PR requires documentation updates.

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[codecov]

Codecov Report

Attention: Patch coverage is 92.16590% with 17 lines in your changes missing coverage. Please review.

Project coverage is 83.86%. Comparing base (548e198) to head (3f15eb8).
Report is 32 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5197      +/-   ##
==========================================
- Coverage   84.14%   83.86%   -0.28%     
==========================================
  Files        1177     1184       +7     
  Lines      218960   220074    +1114     
==========================================
+ Hits       184234   184556     +322     
- Misses      34726    35518     +792     

Copilot reviewed 5 out of 6 changed files in this pull request and generated no comments.

Files not reviewed (1)

• src/mito2/src/engine/compaction_test.rs: Evaluated as low risk

Comments suppressed due to low confidence (2)

src/mito2/src/memtable/time_partition.rs:570

• [nitpick] The function name test_write_multi_parts is not very descriptive. Consider renaming it to test_write_multiple_partitions.

fn test_write_multi_parts() {

src/mito2/src/memtable/version.rs:108

• Ensure that the time_window parameter is correctly propagated and used in the fork function.

let mutable = Arc::new(self.mutable.fork(metadata, time_window));