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

Bumps [@commitlint/config-conventional](https://github.com/conventional-changelog/commitlint/tree/HEAD/@commitlint/config-conventional) from 20.5.0 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-major
...

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

Author: dependabot[bot]

package.json

@@ -57,7 +57,7 @@
   "devDependencies": {
     "@changesets/cli": "^2.30.0",
     "@commitlint/cli": "^20.5.0",
-    "@commitlint/config-conventional": "^20.5.0",
+    "@commitlint/config-conventional": "^21.2.0",
     "@hono/node-server": "^2.0.8",
     "@size-limit/file": "^12.1.0",
     "@types/better-sqlite3": "^7.6.13",