fix(package): update chalk to version 4.0.0

Closes #38

Author: greenkeeper[bot]

package.json

@@ -25,7 +25,7 @@
   },
   "homepage": "https://github.com/jermspeaks/generator-react-redux#readme",
   "dependencies": {
-    "chalk": "^2.0.0",
+    "chalk": "^4.0.0",
     "gulp-git": "^1.6.0",
     "mkdirp": "^0.5.1",
     "string": "^3.3.1",