chore: update commitlint monorepo to v17

Author: renovate[bot]

package.json

@@ -31,9 +31,9 @@
   },
   "homepage": "https://github.com/untool/mixinable#readme",
   "devDependencies": {
-    "@commitlint/cli": "^12.0.0",
-    "@commitlint/config-conventional": "^12.0.0",
-    "@commitlint/travis-cli": "^12.0.0",
+    "@commitlint/cli": "^17.0.0",
+    "@commitlint/config-conventional": "^17.0.0",
+    "@commitlint/travis-cli": "^17.0.0",
     "@untool/eslint-config": "^1.0.0",
     "@untool/prettier-config": "^1.0.0",
     "ava": "^3.0.0",