chore(deps): update dependency analyzer to v6

Author: renovate[bot]

pubspec.yaml

@@ -42,7 +42,7 @@ dev_dependencies:
     sdk: flutter
   build_runner: ^2.4.11
   built_value_generator: ^8.9.2
-  analyzer: ^5.2.0
+  analyzer: ^6.0.0
   flutter_lints: ^4.0.0
 
 flutter: