Update pyproject.toml to get a 'Summary' metadata

[stonebig]

Change Summary

Provide Summary Metadata, as pydantic-core is in the 1% of packages that I use and that miss one

[codecov]

Codecov Report

Merging #1214 (5d64319) into main (ab503cb) will increase coverage by 0.01%.
Report is 20 commits behind head on main.
The diff coverage is n/a.

❗ Current head 5d64319 differs from pull request most recent head 1640071. Consider uploading reports for the commit 1640071 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1214      +/-   ##
==========================================
+ Coverage   90.21%   90.22%   +0.01%     
==========================================
  Files         106      106              
  Lines       16339    16385      +46     
  Branches       36       36              
==========================================
+ Hits        14740    14784      +44     
- Misses       1592     1594       +2     
  Partials        7        7              

see 4 files with indirect coverage changes

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[codspeed-hq]

CodSpeed Performance Report

Merging #1214 will degrade performances by 16.43%

_{Comparing stonebig:patch-1 (1640071) with main (7fe78ed)}

Summary

❌ 1 regressions
✅ 147 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	stonebig:patch-1	Change
❌	test_small_class_core_dict	32.3 µs	38.6 µs	-16.43%

[davidhewitt]

Thanks, seems reasonable to me!