chore(package): update raw-loader to version 4.0.1

Closes #20

Author: greenkeeper[bot]

package.json

@@ -88,7 +88,7 @@
     "postcss": "^7.0.6",
     "postcss-strip-inline-comments": "^0.1.5",
     "pump": "^3.0.0",
-    "raw-loader": "^0.5.1",
+    "raw-loader": "^4.0.1",
     "rollup": "^0.67.4",
     "rollup-plugin-commonjs": "^9.2.2",
     "rollup-plugin-node-resolve": "^3.4.0",