chore(package): update @angular-builders/custom-webpack to version 8.0.1

Closes #53

Author: greenkeeper[bot]

package.json

@@ -82,7 +82,7 @@
 		"zone.js": "^0.9.1"
 	},
 	"devDependencies": {
-		"@angular-builders/custom-webpack": "8.0.0-RC.1",
+		"@angular-builders/custom-webpack": "8.0.1",
 		"@angular-devkit/build-angular": "0.800.0",
 		"@angular/cli": "8.0.0",
 		"@angular/compiler-cli": "8.0.0",