Ignore errors when cleaning up temp dirs (Win)

tests/utils.py

@@ -0,0 +1,15 @@
+import tempfile
+
+
+class IgnorantTemporaryDirectory:
+    def __init__(self):
+        self.temp_dir = tempfile.TemporaryDirectory()
+
+    def __enter__(self):
+        return self.temp_dir.__enter__()
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        try:
+            self.temp_dir.__exit__(exc_type, exc_val, exc_tb)
+        except OSError:
+            pass  # Ignore errors (Windows)