add ensure_gc fixture

Signed-off-by: Jinzhe Zeng <[email protected]>

source/tests/conftest.py

@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: LGPL-3.0-or-later
+import gc
+
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def ensure_gc():
+    """Wordaround to resolve OOM killed issue in the GitHub Action."""
+    # https://github.com/pytest-dev/pytest/discussions/8153#discussioncomment-214812
+    gc.collect()