chore(deps): update dependency ts-loader to v8.0.18

Author: renovate-bot

package-lock.json

@@ -75,7 +75,7 @@
     "semantic-release": "17.4.2",
     "serve": "11.3.2",
     "start-server-and-test": "1.12.0",
-    "ts-loader": "8.0.17",
+    "ts-loader": "8.0.18",
     "typescript": "4.2.3",
     "webpack": "4.46.0",
     "webpack-cli": "3.3.12"