takedown testcases to ensure gate stability

tests/st/dump/test_dump_format.py

@@ -144,7 +144,7 @@ def test_ascend_kernel_by_kernel_trans_false():
     del os.environ['GRAPH_OP_RUN']
 
 
-@pytest.mark.level0
+@pytest.mark.level1
 @pytest.mark.platform_arm_ascend_training
 @pytest.mark.platform_x86_ascend_training
 @pytest.mark.env_onecard

tests/ut/python/nn/test_transformer.py

@@ -525,6 +525,7 @@ class TestBasicWarningValidator:
         test_cross_entroy()
         self.check_warning_log()
 
+    @pytest.mark.skip(reason="random failures")
     def test_transformer_encoder_no_warning(self):
         """
         Feature: Test the warning log