chore(deps-dev): bump @jupyterlab/galata in /ui-tests

Bumps [@jupyterlab/galata](https://github.com/jupyterlab/jupyterlab) from 4.5.1 to 4.5.3.
- [Release notes](https://github.com/jupyterlab/jupyterlab/releases)
- [Changelog](https://github.com/jupyterlab/jupyterlab/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jupyterlab/jupyterlab/compare/@jupyterlab/galata@4.5.1...@jupyterlab/galata@4.5.3)

---
updated-dependencies:
- dependency-name: "@jupyterlab/galata"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

ui-tests/package.json

@@ -45,7 +45,7 @@
     "deduplicate": "jlpm && yarn-deduplicate -s fewer --fail"
   },
   "devDependencies": {
-    "@jupyterlab/galata": "^4.5.1",
+    "@jupyterlab/galata": "^4.5.3",
     "yarn-deduplicate": "^6.0.1"
   }
 }