chore(package): update bluebird to version 3.7.2

Closes #15

Author: greenkeeper[bot]

package.json

@@ -32,7 +32,7 @@
   },
   "devDependencies": {
     "@bubltechnology/customizable-commit-analyzer": "1.0.2-0",
-    "bluebird": "3.5.0",
+    "bluebird": "3.7.2",
     "chai": "4.0.2",
     "condition-circle": "1.5.0",
     "coveralls": "2.13.1",