Bump react-router from 7.11.0 to 7.12.0

Bumps [react-router](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router) from 7.11.0 to 7.12.0.
- [Release notes](https://github.com/remix-run/react-router/releases)
- [Changelog](https://github.com/remix-run/react-router/blob/main/packages/react-router/CHANGELOG.md)
- [Commits](https://github.com/remix-run/react-router/commits/react-router@7.12.0/packages/react-router)

---
updated-dependencies:
- dependency-name: react-router
  dependency-version: 7.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -40,7 +40,7 @@
     "mariadb": "^3.4.5",
     "react": "^19.2.3",
     "react-dom": "^19.2.3",
-    "react-router": "^7.11.0",
+    "react-router": "^7.12.0",
     "react-select": "^5.10.2",
     "sequelize": "^6.37.7",
     "socket.io-client": "^4.8.3",