Bump the production-dependencies group across 1 directory with 2 updates

Bumps the production-dependencies group with 2 updates in the / directory: [@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 5.16.7 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 5.16.7 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: production-dependencies
- dependency-name: "@mui/material"
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: production-dependencies
...

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