feat: Use a partition level map to look up pk index

[evenyag]

I hereby agree to the terms of the GreptimeDB CLA

What's changed and what's your intention?

This PR adds a partition level map to replace the shard level map to look up pk indices. This can improve pk index lookup performance as we don't need to iterate all shards to find the pk index.

• Pk indices inside a dictionary builder can't be compared directly. We collect pk indices after we freeze a dictionary and then write them to the partition level map.
• Now we evict the whole partition once we reach the dictionary memory limit so we can also drop the map on eviction.

This PR also fixes an issue that a key may be written to multiple shards if we find the key before finishing a shard builder.

Checklist

• I have written the necessary rustdoc comments.
• I have added the necessary unit tests and integration tests.
• This PR does not require documentation updates.

Refer to a related PR or issue link (optional)

• Tracking issue for the memtable improvement #2804

[codecov]

Codecov Report

Attention: Patch coverage is 89.37198% with 22 lines in your changes are missing coverage. Please review.

Project coverage is 84.54%. Comparing base (dbb1ce1) to head (67823cf).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3400      +/-   ##
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- Coverage   85.04%   84.54%   -0.50%     
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  Files         893      899       +6     
  Lines      147899   148520     +621     
==========================================
- Hits       125781   125567     -214     
- Misses      22118    22953     +835     

[fengjiachun]

LGTM

[v0y4g3r]

LGTM