Bump firebase_crashlytics from 4.1.5 to 4.2.0 (#208)

Bumps [firebase_crashlytics](https://github.com/firebase/flutterfire/tree/main/packages/firebase_crashlytics) from 4.1.5 to 4.2.0.
- [Release notes](https://github.com/firebase/flutterfire/releases)
- [Commits](https://github.com/firebase/flutterfire/commits/firebase_crashlytics-v4.2.0/packages/firebase_crashlytics)

---
updated-dependencies:
- dependency-name: firebase_crashlytics
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pubspec.yaml

@@ -26,7 +26,7 @@ dependencies:
   path_provider: ^2.1.5
   percent_indicator: ^4.2.4
   firebase_core: ^3.6.0
-  firebase_crashlytics: ^4.1.5
+  firebase_crashlytics: ^4.2.0
   firebase_analytics: ^11.3.6
   cloud_functions: ^5.1.5
   package_info_plus: ^8.1.1