SEDONA-725 rearrange the spark module

Author: Imbruced

python/tests/flink/test_flink_registration.py

@@ -18,6 +18,10 @@
 from shapely.wkb import loads
 import pytest
 
+from tests.flink.conftest import has_pyflink
+
+if not has_pyflink():
+    pytest.skip("PyFlink is not installed. Skipping tests that require PyFlink.")
 
 @pytest.mark.flink
 def test_register(table_env):