chore(deps): update dependency ts-loader to v9

Author: renovate-bot

package.json

@@ -36,7 +36,7 @@
     "@types/sdp-transform": "2.4.4",
     "@types/uuid": "8.3.0",
     "prettier": "2.2.1",
-    "ts-loader": "8.0.12",
+    "ts-loader": "9.2.6",
     "tslint": "6.1.3",
     "tslint-config-prettier": "1.18.0",
     "typescript": "4.1.3",