Bump ts-loader from 9.5.2 to 9.5.4 in /frontend

Bumps [ts-loader](https://github.com/TypeStrong/ts-loader) from 9.5.2 to 9.5.4.
- [Release notes](https://github.com/TypeStrong/ts-loader/releases)
- [Changelog](https://github.com/TypeStrong/ts-loader/blob/main/CHANGELOG.md)
- [Commits](https://github.com/TypeStrong/ts-loader/compare/v9.5.2...v9.5.4)

---
updated-dependencies:
- dependency-name: ts-loader
  dependency-version: 9.5.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

frontend/package-lock.json

@@ -3966,7 +3966,9 @@
 			}
 		},
 		"node_modules/ts-loader": {
-			"version": "9.5.2",
+			"version": "9.5.4",
+			"resolved": "https://registry.npmjs.org/ts-loader/-/ts-loader-9.5.4.tgz",
+			"integrity": "sha512-nCz0rEwunlTZiy6rXFByQU1kVVpCIgUpc/psFiKVrUwrizdnIbRFu8w7bxhUF0X613DYwT4XzrZHpVyMe758hQ==",
 			"dev": true,
 			"license": "MIT",
 			"dependencies": {
@@ -4510,7 +4512,7 @@
 				"sass-loader": "^16.0.5",
 				"sync-client": "file:../sync-client",
 				"terser-webpack-plugin": "^5.3.14",
-				"ts-loader": "^9.5.2",
+				"ts-loader": "^9.5.4",
 				"tslib": "2.8.1",
 				"tsx": "^4.20.5",
 				"typescript": "5.8.3",
@@ -4548,7 +4550,7 @@
 			},
 			"devDependencies": {
 				"@types/node": "^22.15.30",
-				"ts-loader": "^9.5.2",
+				"ts-loader": "^9.5.4",
 				"tslib": "2.8.1",
 				"tsx": "^4.20.5",
 				"typescript": "5.8.3",
@@ -4604,7 +4606,7 @@
 				"@types/node": "^22.15.30",
 				"bufferutil": "^4.0.9",
 				"sync-client": "file:../sync-client",
-				"ts-loader": "^9.5.2",
+				"ts-loader": "^9.5.4",
 				"tslib": "2.8.1",
 				"tsx": "^4.20.5",
 				"typescript": "5.8.3",