chore(deps): update commitlint monorepo to v8

Author: renovate-bot

package.json

@@ -59,8 +59,8 @@
     "svg-to-vue-component": "^0.3.1"
   },
   "devDependencies": {
-    "@commitlint/cli": "^7.3.1",
-    "@commitlint/config-conventional": "^7.3.1",
+    "@commitlint/cli": "^8.3.3",
+    "@commitlint/config-conventional": "^8.3.3",
     "@nuxtjs/eslint-config": "^0.0.1",
     "babel-eslint": "^10.0.1",
     "codecov": "^3.1.0",