Bump react-markdown from 8.0.3 to 9.0.0 (#525)

Bumps [react-markdown](https://github.com/remarkjs/react-markdown) from 8.0.3 to 9.0.0.
- [Release notes](https://github.com/remarkjs/react-markdown/releases)
- [Changelog](https://github.com/remarkjs/react-markdown/blob/main/changelog.md)
- [Commits](remarkjs/react-markdown@8.0.3...9.0.0)

---
updated-dependencies:
- dependency-name: react-markdown
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -28,7 +28,7 @@
     "react-image-lightbox": "^5.1.4",
     "react-leaflet": "^4.2.0",
     "react-leaflet-draw": "^0.20.1",
-    "react-markdown": "^8.0.3",
+    "react-markdown": "^9.0.0",
     "react-moment": "^1.1.2",
     "react-router": "^6.8.2",
     "react-router-dom": "^6.11.0"