chore(deps): bump very_good_analysis from 4.0.0+1 to 6.0.0 in /example

Bumps [very_good_analysis](https://github.com/VeryGoodOpenSource/very_good_analysis) from 4.0.0+1 to 6.0.0.
- [Release notes](https://github.com/VeryGoodOpenSource/very_good_analysis/releases)
- [Changelog](https://github.com/VeryGoodOpenSource/very_good_analysis/blob/main/CHANGELOG.md)
- [Commits](VeryGoodOpenSource/very_good_analysis@v4.0.0...v6.0.0)

---
updated-dependencies:
- dependency-name: very_good_analysis
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

example/pubspec.yaml

@@ -14,7 +14,7 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  very_good_analysis: ^4.0.0
+  very_good_analysis: ^6.0.0
 
 flutter:
   uses-material-design: true