chore: Resolve some warnings in tests

[vdusek]

 D:\a\crawlee-python\crawlee-python\tests\unit\storages\test_key_value_store.py:1073: UserWarning: The SqlStorageClient is experimental and may change or be removed in future releases.
    pytest.param(SqlStorageClient(), id='tested=SqlStorageClient'),

• suppress_user_warning fixture has autouse

tests/unit/crawlers/_basic/test_basic_crawler.py::test_status_message_callback
  D:\a\crawlee-python\crawlee-python\tests\unit\crawlers\_basic\test_basic_crawler.py:1507: RuntimeWarning: coroutine 'AsyncMockMixin._execute_mock_call' was never awaited
    status_message_callback(message)
  Enable tracemalloc to get traceback where the object was allocated.
  See https://docs.pytest.org/en/stable/how-to/capture-warnings.html#resource-warnings for more info.

• added missing await