deps: bump react-router from 7.13.0 to 7.15.0

Bumps [react-router](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router) from 7.13.0 to 7.15.0.
- [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@7.15.0/packages/react-router)

---
updated-dependencies:
- dependency-name: react-router
  dependency-version: 7.15.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package.json

@@ -63,7 +63,7 @@
     "react-image-crop": "^11.0.5",
     "react-leaflet": "^4.2.1",
     "react-modal": "^3.16.1",
-    "react-router": "^7.12.0",
+    "react-router": "^7.15.0",
     "react-router-dom": "^7.12.0",
     "react-scroll": "^1.9.0",
     "sass": "^1.72.0",