fix: escape keys in schemas starting with digit but and containing non-digit characters

[mrlubos]

Closes #496

[stackblitz]

Run & review this pull request in StackBlitz Codeflow.

[changeset-bot]

🦋 Changeset detected

Latest commit: 8112507

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

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
hey-api-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 27, 2024 4:45pm

[codecov]

Codecov Report

Attention: Patch coverage is 29.62963% with 19 lines in your changes are missing coverage. Please review.

Project coverage is 79.11%. Comparing base (ffd237d) to head (8112507).

Files	Patch %	Lines
packages/openapi-ts/src/utils/write/schemas.ts	26.31%	14 Missing ⚠️
packages/openapi-ts/src/compiler/types.ts	37.50%	3 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #502      +/-   ##
==========================================
+ Coverage   79.00%   79.11%   +0.11%     
==========================================
  Files          74       74              
  Lines        6100     6109       +9     
  Branches      608      617       +9     
==========================================
+ Hits         4819     4833      +14     
+ Misses       1280     1273       -7     
- Partials        1        3       +2     

Flag	Coverage Δ
unittests	79.11% <29.62%> (+0.11%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.