HSC-519: Add max_slot_wal_keep_size to release slot once the wal grows beyond 2GB (#193)

Author: enyachoke

docker-compose-common.yml

@@ -41,7 +41,7 @@ services:
       restic-compose-backup.mariadb: true
 
   postgresql:
-    command: postgres -c wal_level=logical -c max_wal_senders=10 -c max_replication_slots=10 -c max_connections=200
+    command: postgres -c wal_level=logical -c max_wal_senders=10 -c max_replication_slots=10 -c max_connections=200 -c max_slot_wal_keep_size=2GB
     environment:
       POSTGRES_DB: postgres
       POSTGRES_USER: ${POSTGRES_USER}