Bump @react-native/metro-config from 0.76.3 to 0.84.0 in /examples

Bumps [@react-native/metro-config](https://github.com/facebook/react-native/tree/HEAD/packages/metro-config) from 0.76.3 to 0.84.0.
- [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/v0.84.0/packages/metro-config)

---
updated-dependencies:
- dependency-name: "@react-native/metro-config"
  dependency-version: 0.84.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

examples/package.json

@@ -27,7 +27,7 @@
     "@babel/runtime": "^7.26.10",
     "@react-native-community/cli": "latest",
     "@react-native/babel-preset": "0.76.3",
-    "@react-native/metro-config": "0.76.3",
+    "@react-native/metro-config": "0.84.0",
     "@tsconfig/react-native": "^3.0.5",
     "@types/jest": "^29.5.14",
     "@types/react": "^18.3.12",