Fix: commit address materialized view refresh

Problem: the address materialized view was not refreshed correctly.
Solution: commit the SQLA session.

Author: odesenfans

src/aleph/handlers/content/aggregate.py

@@ -3,7 +3,6 @@
 from typing import List, cast, Sequence, Set
 
 from aleph_message.models import AggregateContent
-from sqlalchemy import update, delete
 
 from aleph.db.accessors.aggregates import (
     get_aggregate_by_key,

src/aleph/services/cache/materialized_views.py

@@ -21,6 +21,7 @@ async def refresh_cache_materialized_views(session_factory: DbSessionFactory) ->
         try:
             with session_factory() as session:
                 refresh_address_stats_mat_view(session)
+                session.commit()
                 LOGGER.info("Refreshed address stats materialized view")
 
         except Exception: