Delete service cache when changing an organisation's sector

When we change an organisation's sector we now also change the sector of
all its services, so we need to delete those services from Redis.

app/main/views/organisations.py

@@ -216,8 +216,11 @@ def edit_organisation_type(org_id):
     )
 
     if form.validate_on_submit():
+        org_service_ids = [service['id'] for service in current_organisation.services]
+
         organisations_client.update_organisation(
             current_organisation.id,
+            cached_service_ids=org_service_ids,
             organisation_type=form.organisation_type.data,
         )
         return redirect(url_for('.organisation_settings', org_id=org_id))