build(deps): bump @mui/lab from 6.0.0-beta.18 to 6.0.0-beta.19 (#3292)

Bumps [@mui/lab](https://github.com/mui/material-ui/tree/HEAD/packages/mui-lab) from 6.0.0-beta.18 to 6.0.0-beta.19.
- [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/HEAD/packages/mui-lab)

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

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

package.json

@@ -11,7 +11,7 @@
     "@fortawesome/fontawesome-free": "^6.7.1",
     "@gatsbyjs/reach-router": "^2.0.1",
     "@mdx-js/react": "^2.3.0",
-    "@mui/lab": "^6.0.0-beta.18",
+    "@mui/lab": "^6.0.0-beta.19",
     "@mui/material": "^6.1.7",
     "@mui/x-data-grid": "^7.23.1",
     "@mui/x-date-pickers": "^7.23.1",