fix: use UTC to avoid DST

templates/retrieve_openstack_cloud_facts.sh.j2

@@ -13,7 +13,7 @@ export OS_USERNAME="{{ swift_cloud_username }}"
 export OS_PASSWORD="{{ swift_cloud_password }}"
 export OS_REGION_NAME="{{ swift_cloud_regionname }}"
 
-TODAY=`date +%F`
+TODAY=`date --utc +%F`
 
 for container in `/usr/local/bin/swift list`
 do