release: 2.27.2

[davidhewitt]

Change Summary

Cherry-picks to backport fixes onto the series for Pydantic 2.10. Hopefully we won't need to release another backport after this.

Related issue number

pydantic/pydantic#10910

Checklist

• Unit tests for the changes exist
• Documentation reflects the changes where applicable
• Pydantic tests pass with this pydantic-core (except for expected changes)
• My PR is ready to review, please add a comment including the phrase "please review" to assign reviewers

[davidhewitt]

I will fast-forward merge manually if CI is green.

[codspeed-hq]

CodSpeed Performance Report

Merging #1587 will improve performances by 20.84%

_{Comparing release-2.27.2 (d771df5) with main (d3a2f47)}

Summary

⚡ 4 improvements
✅ 151 untouched benchmarks
⁉️ 2 dropped benchmarks

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

Benchmarks breakdown

	Benchmark	main	release-2.27.2	Change
⁉️	test_complete_core_root	275.2 µs	N/A	N/A
⁉️	test_complete_core_root_json	446 µs	N/A	N/A
⚡	test_field_function_validator	391.7 µs	342.6 µs	+14.32%
⚡	test_json_any_list_int	224.2 µs	196.3 µs	+14.23%
⚡	test_json_any_list_str	260.8 µs	232.5 µs	+12.21%
⚡	test_to_json_list_of_lists	2.1 ms	1.7 ms	+20.84%