Bump autorest from 3.6.3 to 3.7.0 in /src/generator (#806)

Bumps [autorest](https://github.com/Azure/autorest) from 3.6.3 to 3.7.0.
- [Release notes](https://github.com/Azure/autorest/releases)
- [Commits](https://github.com/Azure/autorest/commits)

---
updated-dependencies:
- dependency-name: autorest
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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src/generator/package.json

@@ -34,7 +34,7 @@
     "@typescript-eslint/eslint-plugin": "^6.8.0",
     "@typescript-eslint/parser": "^6.8.0",
     "async": "^3.2.5",
-    "autorest": "^3.6.3",
+    "autorest": "^3.7.0",
     "bicep-types": "file:../../bicep-types/src/bicep-types",
     "colors": "^1.4.0",
     "eslint": "^8.51.0",