Make tests pass in 2032

[bmwiedemann]

Change Summary

Make tests pass in 2032

Background:
As part of my work on reproducible builds for openSUSE, I check that software still gives identical build results in the future.
The usual offset is +16 years, because that is how long I expect some software will be used in some places.
This showed up failing tests in our package build.
See https://reproducible-builds.org/ for why this matters.

Related issue number

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

Selected Reviewer: @davidhewitt

[bmwiedemann]

please review

[codecov]

Codecov Report

Merging #1221 (779afa8) into main (ab503cb) will decrease coverage by 0.36%.
Report is 29 commits behind head on main.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1221      +/-   ##
==========================================
- Coverage   90.21%   89.86%   -0.36%     
==========================================
  Files         106      106              
  Lines       16339    16474     +135     
  Branches       36       40       +4     
==========================================
+ Hits        14740    14804      +64     
- Misses       1592     1651      +59     
- Partials        7       19      +12     

see 5 files with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1083986...779afa8. Read the comment docs.

[codspeed-hq]

CodSpeed Performance Report

Merging #1221 will improve performances by 15.21%

_{Comparing bmwiedemann:main (779afa8) with main (1083986)}

Summary

⚡ 1 improvements
✅ 147 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	bmwiedemann:main	Change
⚡	test_core_future	55 µs	47.7 µs	+15.21%