fix(package): update chalk to version 4.0.0

Closes #77

Author: greenkeeper[bot]

package.json

@@ -23,7 +23,7 @@
   },
   "homepage": "https://github.com/fullscreenshenanigans/shenanigans-manager#readme",
   "dependencies": {
-    "chalk": "^2.4.2",
+    "chalk": "^4.0.0",
     "glob": "^7.1.4",
     "json-stable-stringify": "^1.0.1",
     "minimist": "^1.2.0",