chore(deps): bump @react-navigation/native-stack in /example (#505)

Bumps [@react-navigation/native-stack](https://github.com/react-navigation/react-navigation/tree/HEAD/packages/native-stack) from 6.2.2 to 6.2.3.
- [Release notes](https://github.com/react-navigation/react-navigation/releases)
- [Changelog](https://github.com/react-navigation/react-navigation/blob/main/packages/native-stack/CHANGELOG.md)
- [Commits](https://github.com/react-navigation/react-navigation/commits/@react-navigation/native-stack@6.2.3/packages/native-stack)

---
updated-dependencies:
- dependency-name: "@react-navigation/native-stack"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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example/package.json

@@ -18,7 +18,7 @@
     "@react-native-community/cameraroll": "^4.1.1",
     "@react-native-community/slider": "^4.1.7",
     "@react-navigation/native": "^6.0.5",
-    "@react-navigation/native-stack": "^6.2.2",
+    "@react-navigation/native-stack": "^6.2.3",
     "react": "^17.0.2",
     "react-native": "^0.66.0",
     "react-native-gesture-handler": "^1.10.3",