skip tests, pytest upstream regression (microsoft#22974)

Short-term fix to stop CI from failing due to a regression upstream from
pytest. See issue for details:
microsoft#22965.

pythonFiles/tests/pytestadapter/test_discovery.py

@@ -18,6 +18,10 @@
 from .helpers import TEST_DATA_PATH, runner, runner_with_cwd, create_symlink
 
 
+@pytest.mark.skipif(
+    sys.platform == "win32",
+    reason="See https://github.com/microsoft/vscode-python/issues/22965",
+)
 def test_import_error(tmp_path):
     """Test pytest discovery on a file that has a pytest marker but does not import pytest.
 
@@ -59,6 +63,10 @@ def test_import_error(tmp_path):
                 assert False
 
 
+@pytest.mark.skipif(
+    sys.platform == "win32",
+    reason="See https://github.com/microsoft/vscode-python/issues/22965",
+)
 def test_syntax_error(tmp_path):
     """Test pytest discovery on a file that has a syntax error.
 

pythonFiles/tests/pytestadapter/test_execution.py

@@ -6,6 +6,7 @@
 from typing import Any, Dict, List
 
 import pytest
+import sys
 
 from tests.pytestadapter import expected_execution_test_output
 
@@ -71,6 +72,10 @@ def test_rootdir_specified():
         assert actual_result_dict == expected_const
 
 
+@pytest.mark.skipif(
+    sys.platform == "win32",
+    reason="See https://github.com/microsoft/vscode-python/issues/22965",
+)
 def test_syntax_error_execution(tmp_path):
     """Test pytest execution on a file that has a syntax error.