build: bump @fluentui/font-icons-mdl2 in /ClientAdvisor/App/frontend

Bumps [@fluentui/font-icons-mdl2](https://github.com/microsoft/fluentui) from 8.5.42 to 8.5.57.
- [Release notes](https://github.com/microsoft/fluentui/releases)
- [Changelog](https://github.com/microsoft/fluentui/blob/master/azure-pipelines.release.yml)
- [Commits](https://github.com/microsoft/fluentui/compare/@fluentui/font-icons-mdl2_v8.5.42...@fluentui/font-icons-mdl2_v8.5.57)

---
updated-dependencies:
- dependency-name: "@fluentui/font-icons-mdl2"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

ClientAdvisor/App/frontend/package-lock.json

@@ -16,7 +16,7 @@
     "format": "npm run prettier:fix && npm run lint:fix"
   },
   "dependencies": {
-    "@fluentui/font-icons-mdl2": "^8.5.42",
+    "@fluentui/font-icons-mdl2": "^8.5.57",
     "@fluentui/react": "^8.105.3",
     "@fluentui/react-hooks": "^8.6.29",
     "@fluentui/react-icons": "^2.0.270",