chore(package): update @commitlint/prompt to version 7.6.1

Closes #55

Author: greenkeeper[bot]

package.json

@@ -39,7 +39,7 @@
   "devDependencies": {
     "@commitlint/cli": "^6.0.1",
     "@commitlint/config-angular": "^6.0.2",
-    "@commitlint/prompt": "^6.0.1",
+    "@commitlint/prompt": "^7.6.1",
     "@commitlint/prompt-cli": "^6.0.1",
     "babel-cli": "^6.26.0",
     "babel-plugin-transform-async-to-generator": "^6.24.1",