restart workers after executing 10 tasks to mitigate memory leaks (#840)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

conda-store-server/conda_store_server/_internal/worker/app.py

@@ -72,6 +72,7 @@ def start(self):
         argv = [
             "worker",
             "--loglevel=INFO",
+            "--max-tasks-per-child=10",  # mitigate memory leaks
         ]
 
         # The default Celery pool requires this on Windows. See