chore(package): update @commitlint/cli to version 7.2.1

Closes #285

Author: greenkeeper[bot]

package.json

@@ -51,7 +51,7 @@
     "type-is": "^1.6.14"
   },
   "devDependencies": {
-    "@commitlint/cli": "^6.0.2",
+    "@commitlint/cli": "^7.2.1",
     "@commitlint/config-conventional": "^6.0.2",
     "@commitlint/prompt": "^6.0.2",
     "chai": "^4.1.2",