Bump @mui/x-date-pickers from 6.19.2 to 7.2.0 in /frontend (#1234)

Bumps [@mui/x-date-pickers](https://github.com/mui/mui-x/tree/HEAD/packages/x-date-pickers) from 6.19.2 to 7.2.0.
- [Release notes](https://github.com/mui/mui-x/releases)
- [Changelog](https://github.com/mui/mui-x/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mui/mui-x/commits/v7.2.0/packages/x-date-pickers)

---
updated-dependencies:
- dependency-name: "@mui/x-date-pickers"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

frontend/package.json

@@ -58,7 +58,7 @@
     "@mui/material": "^5.15.9",
     "@mui/system": "^5.15.11",
     "@mui/x-data-grid": "^6.19.2",
-    "@mui/x-date-pickers": "^6.19.2",
+    "@mui/x-date-pickers": "^7.2.0",
     "@nivo/core": "^0.85.1",
     "@nivo/line": "^0.85.1",
     "base-ex": "^0.8.1",