fix: issue causing code to not generate (t.filter is not a function)

[jordanshatford]

closes: #481

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🦋 Changeset detected

Latest commit: a3220ef

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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Name	Status	Preview	Comments	Updated (UTC)
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[codecov]

Codecov Report

Attention: Patch coverage is 44.44444% with 15 lines in your changes are missing coverage. Please review.

Project coverage is 79.00%. Comparing base (e3b9876) to head (a3220ef).

Files	Patch %	Lines
packages/openapi-ts/src/compiler/types.ts	50.00%	11 Missing ⚠️
packages/openapi-ts/src/compiler/typedef.ts	33.33%	2 Missing ⚠️
packages/openapi-ts/src/compiler/classes.ts	0.00%	1 Missing ⚠️
packages/openapi-ts/src/utils/write/types.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #507   +/-   ##
=======================================
  Coverage   78.99%   79.00%           
=======================================
  Files          74       74           
  Lines        6118     6125    +7     
  Branches      617      619    +2     
=======================================
+ Hits         4833     4839    +6     
- Misses       1282     1283    +1     
  Partials        3        3           

Flag	Coverage Δ
unittests	79.00% <44.44%> (+<0.01%)	⬆️

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