test: change test_milvus_client_search_json_path_index_all_expressions to L1 (#44986)

Issue: #44989 
On branch feature/json-shredding
Changes to be committed:
modified: milvus_client/test_milvus_client_query.py

Signed-off-by: Eric Hou <[email protected]>
Co-authored-by: Eric Hou <[email protected]>

Author: FeilongHou

tests/python_client/milvus_client/test_milvus_client_query.py

@@ -4114,7 +4114,7 @@ def supported_json_cast_type(self, request):
     #  The following are valid base cases
     ******************************************************************
     """
-    @pytest.mark.tags(CaseLabel.L2)
+    @pytest.mark.tags(CaseLabel.L1)
     @pytest.mark.parametrize("enable_dynamic_field", [True, False])
     @pytest.mark.parametrize("is_flush", [True, False])
     @pytest.mark.parametrize("is_release", [True, False])