chore(package): update @commitlint/cli to version 8.0.0 (#267)

Author: greenkeeper[bot]

package.json

@@ -28,7 +28,7 @@
     "yargs": "^8.0.2"
   },
   "devDependencies": {
-    "@commitlint/cli": "^7.5.2",
+    "@commitlint/cli": "^8.0.0",
     "@commitlint/config-conventional": "^7.5.0",
     "@types/jest": "^24.0.12",
     "codecov": "^3.4.0",