chore(deps): update dependency lints to v6 (#61)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pubspec.yaml

@@ -24,7 +24,7 @@ dependencies:
   hive: ^2.2.3
 
 dev_dependencies:
-  lints: ^5.1.1
+  lints: ^6.0.0
   test: ^1.16.0
 
   build_runner: ^2.4.7