add health check for borgmatic

docker-compose.borgmatic.yml

@@ -4,6 +4,12 @@ services:
         environment:
         - TZ=Europe/Amsterdam
         image: b3vis/borgmatic:v1.1.10-1.4.21
+        healthcheck:
+          test: [ "CMD", "pgrep", "crond" ]
+          interval: 20s
+          start_period: 30s
+          timeout: 5s
+          retries: 10
         privileged: true
         restart: unless-stopped
         volumes: