fix: do not export common properties as schemas

[mrlubos]

Closes #420

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🦋 Changeset detected

Latest commit: 901ed48

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

All modified and coverable lines are covered by tests ✅

Project coverage is 80.89%. Comparing base (b7b0859) to head (901ed48).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #424      +/-   ##
==========================================
+ Coverage   80.79%   80.89%   +0.09%     
==========================================
  Files          75       75              
  Lines        5208     5202       -6     
  Branches      582      581       -1     
==========================================
  Hits         4208     4208              
+ Misses        999      993       -6     
  Partials        1        1              

Flag	Coverage Δ
unittests	80.89% <ø> (+0.09%)	⬆️

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