Update @mui/material requirement from ^5.14.5 to ^5.14.7 in /src-widgets

Updates the requirements on [@mui/material](https://github.com/mui/material-ui/tree/HEAD/packages/mui-material) to permit the latest version.
- [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/v5.14.7/packages/mui-material)

---
updated-dependencies:
- dependency-name: "@mui/material"
  dependency-type: direct:production
...

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

src-widgets/package.json

@@ -11,7 +11,7 @@
         "@iobroker/adapter-react-v5": "^4.5.3",
         "@iobroker/vis-2-widgets-react-dev": "^0.4.6",
         "@mui/icons-material": "^5.14.3",
-        "@mui/material": "^5.14.5",
+        "@mui/material": "^5.14.7",
         "@mui/styles": "^5.14.5",
         "@mui/system": "^5.14.5",
         "@react-spectrum/color": "^3.0.0-beta.24",