Use cubit utils from pub dev

Author: KamilSztandur

packages/leancode_cubit_utils_cqrs/pubspec.yaml

@@ -12,12 +12,7 @@ dependencies:
   flutter:
     sdk: flutter
   flutter_bloc: ^9.0.0
-  leancode_cubit_utils:
-    # TODO: Replace with pub.dev version when `leancode_cubit_utils` version `0.5.0` is released.
-    git:
-      url: git@github.com:leancodepl/leancode_cubit_utils.git
-      ref: fix/query-cubit-handling-on-empty-state
-      path: packages/leancode_cubit_utils
+  leancode_cubit_utils: ^0.5.0
   leancode_hooks: ^0.1.1
 
 dev_dependencies: