Bump ts-loader from 9.3.1 to 9.4.0 in /docs/visualiser

Bumps [ts-loader](https://github.com/TypeStrong/ts-loader) from 9.3.1 to 9.4.0.
- [Release notes](https://github.com/TypeStrong/ts-loader/releases)
- [Changelog](https://github.com/TypeStrong/ts-loader/blob/main/CHANGELOG.md)
- [Commits](TypeStrong/ts-loader@v9.3.1...v9.4.0)

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

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

docs/visualiser/package.json

@@ -4,7 +4,7 @@
     "@babylonjs/gui": "^5.17.1"
   },
   "devDependencies": {
-    "ts-loader": "^9.3.1",
+    "ts-loader": "^9.4.0",
     "typescript": "^4.7.4",
     "webpack": "^5.74.0",
     "webpack-cli": "^4.10.0"