chore: add missing backup variables to .env

Author: heyvaldemar

.env

@@ -16,3 +16,10 @@ ROCKETCHAT_MONGODB_IMAGE_TAG=mongodb/mongodb-community-server:8.0-ubi8
 ROCKETCHAT_IMAGE_TAG=registry.rocket.chat/rocketchat/rocket.chat:8.1.0
 ROCKETCHAT_URL=https://rocketchat.heyvaldemar.net
 ROCKETCHAT_HOSTNAME=rocketchat.heyvaldemar.net
+
+# Backup Variables
+BACKUP_INIT_SLEEP=30m
+BACKUP_INTERVAL=24h
+DATA_BACKUP_PRUNE_DAYS=7
+DATA_BACKUPS_PATH=/srv/rocketchat-mongodb/backups
+DATA_BACKUP_NAME=rocketchat-mongodb-backup