chore(deps): update commitlint monorepo to v9

Author: renovate-bot

package.json

@@ -38,8 +38,8 @@
     "ts-key-enum": "^2.0.0"
   },
   "devDependencies": {
-    "@commitlint/cli": "^8.3.5",
-    "@commitlint/config-conventional": "^8.3.4",
+    "@commitlint/cli": "^9.0.1",
+    "@commitlint/config-conventional": "^9.0.1",
     "@sourcegraph/eslint-config": "^0.17.2",
     "@sourcegraph/prettierrc": "^3.0.3",
     "@sourcegraph/tsconfig": "^4.0.1",