chore(package): update awesome-typescript-loader to version 4.0.0

Author: greenkeeper[bot]

package.json

@@ -65,7 +65,7 @@
     "@types/shelljs": "^0.7.8",
     "@types/sinon": "^4.3.0",
     "@types/sinon-chai": "^2.7.29",
-    "awesome-typescript-loader": "^3.5.0",
+    "awesome-typescript-loader": "^4.0.0",
     "chai": "^4.1.2",
     "coveralls": "^3.0.0",
     "css-loader": "^0.28.10",