skip some pyarrow dependent tests if no pa

Signed-off-by: varun-edachali-dbx <varun.edachali@databricks.com>

Author: varun-edachali-dbx

tests/unit/test_sea_queue.py

@@ -204,6 +204,7 @@ def test_build_queue_json_array(self, json_manifest, sample_data):
         assert isinstance(queue, JsonQueue)
         assert queue.data_array == sample_data
 
+    @pytest.mark.skipif(pa is None, reason="pyarrow not installed")
     def test_build_queue_arrow_stream(
         self, arrow_manifest, ssl_options, mock_sea_client, description
     ):
@@ -333,6 +334,7 @@ def test_convert_to_thrift_link_no_headers(self, sample_external_link_no_headers
 
     @patch("databricks.sql.backend.sea.queue.ResultFileDownloadManager")
     @patch("databricks.sql.backend.sea.queue.logger")
+    @pytest.mark.skipif(pa is None, reason="pyarrow not installed")
     def test_init_with_valid_initial_link(
         self,
         mock_logger,
@@ -487,6 +489,7 @@ def test_hybrid_disposition_with_attachment(
 
     @patch("databricks.sql.backend.sea.queue.ResultFileDownloadManager")
     @patch.object(SeaCloudFetchQueue, "_create_next_table", return_value=None)
+    @pytest.mark.skipif(pa is None, reason="pyarrow not installed")
     def test_hybrid_disposition_with_external_links(
         self,
         mock_create_table,