Bump pnpm from 8.15.3 to 9.1.1

Bumps [pnpm](https://github.com/pnpm/pnpm) from 8.15.3 to 9.1.1.
- [Release notes](https://github.com/pnpm/pnpm/releases)
- [Commits](pnpm/pnpm@v8.15.3...v9.1.1)

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

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

package.json

@@ -421,7 +421,7 @@
     "eslint-plugin-no-only-tests": "^3.1.0",
     "jsonc-parser": "^3.0.0",
     "jsonschema": "^1.4.0",
-    "pnpm": "^8.7.1",
+    "pnpm": "^9.1.1",
     "prettier": "^3.0.3",
     "selfsigned": "^2.0.1",
     "typescript": "^5.2.2",