Update dependency pytest-homeassistant-custom-component to v0.13.324

Author: renovate[bot]

requirements.txt

@@ -1,7 +1,7 @@
 homeassistant==2026.4.0
 
 # Testing
-pytest-homeassistant-custom-component==0.13.321  # Matching version
+pytest-homeassistant-custom-component==0.13.324  # Matching version
 psutil-home-assistant  # Not sure why this is needed?
 fnv_hash_fast  # Or this?
 pytest-asyncio