Add `require_torch` to 2 pipeline tests (#20585)

Co-authored-by: ydshieh <ydshieh@users.noreply.github.com>

tests/pipelines/test_pipelines_table_question_answering.py

@@ -481,6 +481,7 @@ class TQAPipelineTests(unittest.TestCase, metaclass=PipelineTestCaseMeta):
             )
 
     @slow
+    @require_torch
     def test_integration_wtq_pt(self):
         table_querier = pipeline("table-question-answering")
 
@@ -574,6 +575,7 @@ class TQAPipelineTests(unittest.TestCase, metaclass=PipelineTestCaseMeta):
         self.assertListEqual(results, expected_results)
 
     @slow
+    @require_torch
     def test_integration_sqa_pt(self):
         table_querier = pipeline(
             "table-question-answering",