fix(client): handle dates in formdata serializer

[mrlubos]

related #2375

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🦋 Changeset detected

Latest commit: 760fd61

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@hey-api/openapi-ts	Patch

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Project	Deployment	Preview	Comments	Updated (UTC)
hey-api-docs	✅ Ready	Preview	Comment	Aug 13, 2025 4:59pm

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commit: 760fd61

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 22.84%. Comparing base (a91f03d) to head (760fd61).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2438      +/-   ##
==========================================
+ Coverage   22.77%   22.84%   +0.07%     
==========================================
  Files         334      334              
  Lines       32946    32948       +2     
  Branches     1302     1309       +7     
==========================================
+ Hits         7502     7526      +24     
+ Misses      25435    25413      -22     
  Partials        9        9              

Flag	Coverage Δ
unittests	22.84% <100.00%> (+0.07%)	⬆️

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