feat: enhance configuration and scheduling for cleanup processes

- Updated `.env.example` to include new environment variables for MinIO and PyPI configuration.
- Refactored `create_cleanup_schedule` to utilize runtime-specific task queues and improve schedule reconciliation logic.
- Enhanced `Activities` class to require a default bucket in MinIO configuration.
- Adjusted `requirements.txt` to specify version for `evidently`.
- Updated tests to reflect changes in schedule creation and configuration handling.

tests/activities/test_activities.py

@@ -31,6 +31,7 @@ def _minio(endpoint_url: str):
         'secret_key': 's',
         'region': 'r',
         'use_ssl': True,
+        'default_bucket': 'test-bucket',
     }
 
 
@@ -64,6 +65,7 @@ def test_activities_strips_minio_endpoint_scheme(endpoint, expected_endpoint):
         )
     m_minio.assert_called_once()
     assert m_minio.call_args.kwargs['endpoint'] == expected_endpoint
+    assert m_minio.call_args.kwargs['bucket'] == 'test-bucket'
     m_mlflow.assert_called_once()