Update dependency ts-loader to v8.0.4

Author: renovate-bot

package-lock.json

@@ -31,7 +31,7 @@
     "sass-loader": "10.0.0",
     "source-map-loader": "1.1.0",
     "style-loader": "1.2.1",
-    "ts-loader": "8.0.3",
+    "ts-loader": "8.0.4",
     "ts-node": "9.0.0",
     "tsconfig-paths": "3.9.0",
     "tslib": "2.0.1",