Bump react-dnd-multi-backend from 8.1.2 to 9.0.0 in the major group

Bumps the major group with 1 update: [react-dnd-multi-backend](https://github.com/LouisBrunner/dnd-multi-backend/tree/HEAD/packages/react-dnd-multi-backend).


Updates `react-dnd-multi-backend` from 8.1.2 to 9.0.0
- [Release notes](https://github.com/LouisBrunner/dnd-multi-backend/releases)
- [Commits](https://github.com/LouisBrunner/dnd-multi-backend/commits/v9.0.0/packages/react-dnd-multi-backend)

---
updated-dependencies:
- dependency-name: react-dnd-multi-backend
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: major
...

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

package.json

@@ -226,7 +226,7 @@
     "react-aria": "^3.37.0",
     "react-dnd": "^16.0.1",
     "react-dnd-html5-backend": "^16.0.1",
-    "react-dnd-multi-backend": "^8.1.2",
+    "react-dnd-multi-backend": "^9.0.0",
     "react-dnd-touch-backend": "^16.0.1",
     "react-dom": "^19.0.0",
     "react-dropzone": "^14.3.5",