chore(deps): bump @mui/icons-material from 5.14.8 to 5.14.9

Bumps [@mui/icons-material](https://github.com/mui/material-ui/tree/HEAD/packages/mui-icons-material) from 5.14.8 to 5.14.9.
- [Release notes](https://github.com/mui/material-ui/releases)
- [Changelog](https://github.com/mui/material-ui/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mui/material-ui/commits/v5.14.9/packages/mui-icons-material)

---
updated-dependencies:
- dependency-name: "@mui/icons-material"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

packages/apidom-playground/package.json

@@ -24,7 +24,7 @@
   "dependencies": {
     "@emotion/react": "=11.11.1",
     "@emotion/styled": "=11.11.0",
-    "@mui/icons-material": "=5.14.8",
+    "@mui/icons-material": "=5.14.9",
     "@mui/material": "=5.14.8",
     "@swagger-api/apidom-ast": "*",
     "@swagger-api/apidom-core": "*",