chore(deps): update dependency babel-loader to v8.4.1

Author: renovate[bot]

package-lock.json

@@ -33,7 +33,7 @@
     "@babel/preset-react": "7.7.4",
     "babel-core": "7.0.0-bridge.0",
     "babel-jest": "25.1.0",
-    "babel-loader": "8.0.6",
+    "babel-loader": "8.4.1",
     "babel-plugin-module-resolver": "3.2.0",
     "babel-preset-es2015": "6.24.1",
     "coveralls": "3.0.7",