fix: unpin peer dependency and set to major version 9 range

Author: jdbruijn

package.json

@@ -40,7 +40,7 @@
   },
   "homepage": "https://github.com/vidavidorra/commitlint-plugin-function-rules#readme",
   "peerDependencies": {
-    "@commitlint/lint": "9.1.2"
+    "@commitlint/lint": "9.x"
   },
   "dependencies": {
     "@commitlint/types": "9.1.2"