feat(deps): bump @mui/material from 6.1.7 to 6.1.8

Bumps [@mui/material](https://github.com/mui/material-ui/tree/HEAD/packages/mui-material) from 6.1.7 to 6.1.8.
- [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/v6.1.8/packages/mui-material)

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

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

package.json

@@ -31,7 +31,7 @@
     "@emotion/styled": "^11.13.0",
     "@mui/icons-material": "^6.1.7",
     "@mui/lab": "^6.0.0-beta.15",
-    "@mui/material": "^6.1.4",
+    "@mui/material": "^6.1.8",
     "@mui/x-date-pickers": "^7.22.2",
     "@mui/x-tree-view": "^7.22.1",
     "@react-pdf/renderer": "^4.0.2",