deps(deps-dev): bump @commitlint/config-conventional

Bumps [@commitlint/config-conventional](https://github.com/conventional-changelog/commitlint/tree/HEAD/@commitlint/config-conventional) from 21.1.0 to 21.2.0.
- [Release notes](https://github.com/conventional-changelog/commitlint/releases)
- [Changelog](https://github.com/conventional-changelog/commitlint/blob/master/@commitlint/config-conventional/CHANGELOG.md)
- [Commits](https://github.com/conventional-changelog/commitlint/commits/v21.2.0/@commitlint/config-conventional)

---
updated-dependencies:
- dependency-name: "@commitlint/config-conventional"
  dependency-version: 21.2.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -3,7 +3,7 @@
     "@cloudflare/vitest-pool-workers": "^0.16.20",
     "@cloudflare/workers-types": "^4.20260621.1",
     "@commitlint/cli": "^21.1.0",
-    "@commitlint/config-conventional": "^21.0.2",
+    "@commitlint/config-conventional": "^21.2.0",
     "@eslint/js": "^10.0.1",
     "@types/node": "^26.0.1",
     "@vitest/coverage-istanbul": "^4.1.5",