Bump react-native from 0.79.7 to 0.85.3 in /mobile

Bumps [react-native](https://github.com/facebook/react-native/tree/HEAD/packages/react-native) from 0.79.7 to 0.85.3.
- [Release notes](https://github.com/facebook/react-native/releases)
- [Changelog](https://github.com/facebook/react-native/blob/main/CHANGELOG-0.7x.md)
- [Commits](https://github.com/facebook/react-native/commits/v0.85.3/packages/react-native)

---
updated-dependencies:
- dependency-name: react-native
  dependency-version: 0.85.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

mobile/package.json

@@ -19,7 +19,7 @@
     "@tanstack/react-query": "^5.100.10",
     "axios": "^1.16.0",
     "react": "^19.0.0",
-    "react-native": "^0.79.0",
+    "react-native": "^0.85.3",
     "react-native-app-auth": "^8.0.0",
     "react-native-document-picker": "^9.3.0",
     "react-native-haptic-feedback": "^2.3.0",