chore(deps-dev): bump @apidevtools/json-schema-ref-parser

Bumps [@apidevtools/json-schema-ref-parser](https://github.com/APIDevTools/json-schema-ref-parser) from 14.2.1 to 15.3.5.
- [Release notes](https://github.com/APIDevTools/json-schema-ref-parser/releases)
- [Commits](APIDevTools/json-schema-ref-parser@v14.2.1...v15.3.5)

---
updated-dependencies:
- dependency-name: "@apidevtools/json-schema-ref-parser"
  dependency-version: 15.3.5
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

packages/openapi-generator/package.json

@@ -50,7 +50,7 @@
     "swagger2openapi": "^7.0.4"
   },
   "devDependencies": {
-    "@apidevtools/json-schema-ref-parser": "^14.1.1",
+    "@apidevtools/json-schema-ref-parser": "^15.3.5",
     "@jest/globals": "^30.3.0",
     "@sap-cloud-sdk/test-util-internal": "workspace:^",
     "@types/content-type": "^1.1.9",