Add version+cohort options to durable objects

[maxmcd]

No description provided.

[github-actions]

All contributors have signed the CLA ✍️ ✅
_{Posted by the CLA Assistant Lite bot.}

[maxmcd]

I have read the CLA Document and I hereby sign the CLA

[github-actions]

The generated output of @cloudflare/workers-types matches the snapshot in types/generated-snapshot 🎉

[codecov-commenter]

Codecov Report

❌ Patch coverage is 57.14286% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 70.63%. Comparing base (9775779) to head (559bf18).

Files with missing lines	Patch %	Lines
src/workerd/api/actor.c++	46.66%	6 Missing and 2 partials ⚠️
src/workerd/tests/test-fixture.c++	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6118      +/-   ##
==========================================
- Coverage   70.63%   70.63%   -0.01%     
==========================================
  Files         413      413              
  Lines      109819   109828       +9     
  Branches    18096    18098       +2     
==========================================
+ Hits        77576    77578       +2     
- Misses      21436    21440       +4     
- Partials    10807    10810       +3     

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[codspeed-hq]

Merging this PR will improve performance by 19.23%

⚡ 1 improved benchmark
✅ 69 untouched benchmarks
⏩ 129 skipped benchmarks¹

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
⚡	jsonResponse[Response]	47.5 µs	39.9 µs	+19.23%

---

_{Comparing mmcdonnell/do-cohorts (559bf18) with main (9775779)}

Footnotes

1. 129 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩