Bump the mui group with 2 updates

Bumps the mui group with 2 updates: [@mui/icons-material](https://github.com/mui/material-ui/tree/HEAD/packages/mui-icons-material) and [@mui/material](https://github.com/mui/material-ui/tree/HEAD/packages/mui-material).


Updates `@mui/icons-material` from 5.16.8 to 5.16.9
- [Release notes](https://github.com/mui/material-ui/releases)
- [Changelog](https://github.com/mui/material-ui/blob/v5.16.9/CHANGELOG.md)
- [Commits](https://github.com/mui/material-ui/commits/v5.16.9/packages/mui-icons-material)

Updates `@mui/material` from 5.16.8 to 5.16.9
- [Release notes](https://github.com/mui/material-ui/releases)
- [Changelog](https://github.com/mui/material-ui/blob/v5.16.9/CHANGELOG.md)
- [Commits](https://github.com/mui/material-ui/commits/v5.16.9/packages/mui-material)

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

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

package.json

@@ -22,8 +22,8 @@
   "dependencies": {
     "@emotion/react": "^11.13.5",
     "@emotion/styled": "^11.13.5",
-    "@mui/icons-material": "^5.16.8",
-    "@mui/material": "^5.16.8",
+    "@mui/icons-material": "^5.16.9",
+    "@mui/material": "^5.16.9",
     "emoji-js": "^3.8.0",
     "gatsby": "^5.14.0",
     "gatsby-awesome-pagination": "^0.3.8",