deps: bump react-native in /samples/react-native/login-pkce

Bumps [react-native](https://github.com/facebook/react-native/tree/HEAD/packages/react-native) from 0.85.2 to 0.85.3.
- [Release notes](https://github.com/facebook/react-native/releases)
- [Changelog](https://github.com/facebook/react-native/blob/main/CHANGELOG.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-patch
...

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

Author: dependabot[bot]

samples/react-native/login-pkce/package.json

@@ -16,7 +16,7 @@
   },
   "dependencies": {
     "react": "19.2.3",
-    "react-native": "0.85.2",
+    "react-native": "0.85.3",
     "react-native-app-auth": "8.1.0",
     "react-native-config": "1.6.1",
     "react-native-safe-area-context": "5.7.0"