Bump eslint from 7.32.0 to 9.15.0 in /tools/sdk-testgen

Bumps [eslint](https://github.com/eslint/eslint) from 7.32.0 to 9.15.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/main/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v7.32.0...v9.15.0)

---
updated-dependencies:
- dependency-name: eslint
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

tools/sdk-testgen/package.json

@@ -41,7 +41,7 @@
         "autorest": "^3.2.3",
         "cpy-cli": "^5.0.0",
         "cross-env": "^7.0.3",
-        "eslint": "^7.25.0",
+        "eslint": "^9.15.0",
         "eslint-config-prettier": "^9.1.0",
         "eslint-plugin-prettier": "^4.2.1",
         "eslint-plugin-sort-imports-es6-autofix": "0.6.0",