fix(image): use correct singular/plural in registry listing output

Handle "1 repository" vs "2 repositories" and "1 image" vs "2 images"
in _print_registry_listing output.

prowler/providers/image/image_provider.py

@@ -878,7 +878,8 @@ class ImageProvider(Provider):
         print(
             f"\n{Style.BRIGHT}Registry:{Style.RESET_ALL} "
             f"{Fore.CYAN}{self.registry}{Style.RESET_ALL} "
-            f"({num_repos} repositories, {total_images} images)\n"
+            f"({num_repos} {'repository' if num_repos == 1 else 'repositories'}, "
+            f"{total_images} {'image' if total_images == 1 else 'images'})\n"
         )
         for repo, tags in repos_tags.items():
             print(

tests/providers/image/lib/registry/test_provider_registry.py

@@ -184,7 +184,7 @@ class TestRegistryList:
         captured = capsys.readouterr()
         assert "prod/app" in captured.out
         assert "dev/app" not in captured.out
-        assert "1 repositories" in captured.out
+        assert "1 repository" in captured.out
 
     @patch("prowler.providers.image.image_provider.create_registry_adapter")
     def test_registry_list_respects_tag_filter(self, mock_factory, capsys):