chore(package): update @commitlint/prompt-cli to version 8.0.0

Closes #57

Author: greenkeeper[bot]

package.json

@@ -40,7 +40,7 @@
     "@commitlint/cli": "^6.0.1",
     "@commitlint/config-angular": "^6.0.2",
     "@commitlint/prompt": "^6.0.1",
-    "@commitlint/prompt-cli": "^6.0.1",
+    "@commitlint/prompt-cli": "^8.0.0",
     "babel-cli": "^6.26.0",
     "babel-plugin-transform-async-to-generator": "^6.24.1",
     "babel-preset-es2015": "^6.24.1",