build(deps-dev): update openapi-typescript requirement (#9)

Updates the requirements on [openapi-typescript](https://github.com/drwpow/openapi-typescript/tree/HEAD/packages/openapi-typescript) to permit the latest version.
- [Release notes](https://github.com/drwpow/openapi-typescript/releases)
- [Changelog](https://github.com/drwpow/openapi-typescript/blob/openapi-typescript@6.7.5/packages/openapi-typescript/CHANGELOG.md)
- [Commits](https://github.com/drwpow/openapi-typescript/commits/openapi-typescript@6.7.5/packages/openapi-typescript)

---
updated-dependencies:
- dependency-name: openapi-typescript
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -38,7 +38,7 @@
   "devDependencies": {
     "@types/node": "^20.11.26",
     "esbuild": "^0.20.1",
-    "openapi-typescript": "^6.7.4",
+    "openapi-typescript": "^6.7.5",
     "typescript": "^5.4.2"
   },
   "engines": {