Update docker.io/pretix/standalone Docker tag to v2026

resources/chaosknoten/zammad/docker_compose/compose.yaml

@@ -57,7 +57,7 @@ x-shared:
       LETSENCRYPT_HOST:
       LETSENCRYPT_EMAIL:
 
-    image: ${IMAGE_REPO:-ghcr.io/zammad/zammad}:${VERSION:-6.5.3}
+    image: ${IMAGE_REPO:-ghcr.io/zammad/zammad}:${VERSION:-6.5.2}
     restart: ${RESTART:-always}
     volumes:
       - zammad-storage:/opt/zammad/storage
@@ -76,7 +76,7 @@ services:
     user: 0:0
 
   zammad-elasticsearch:
-    image: elasticsearch:${ELASTICSEARCH_VERSION:-8.19.13}
+    image: elasticsearch:${ELASTICSEARCH_VERSION:-8.19.4}
     restart: ${RESTART:-always}
     volumes:
       - elasticsearch-data:/usr/share/elasticsearch/data
@@ -95,7 +95,7 @@ services:
 
   zammad-memcached:
     command: memcached -m 256M
-    image: memcached:${MEMCACHE_VERSION:-1.6.41-alpine}
+    image: memcached:${MEMCACHE_VERSION:-1.6.39-alpine}
     restart: ${RESTART:-always}
 
   zammad-nginx:
@@ -113,7 +113,7 @@ services:
       POSTGRES_DB: ${POSTGRES_DB:-zammad_production}
       POSTGRES_USER: ${POSTGRES_USER:-zammad}
       POSTGRES_PASSWORD: ${POSTGRES_PASS:-zammad}
-    image: postgres:${POSTGRES_VERSION:-17.9-alpine}
+    image: postgres:${POSTGRES_VERSION:-17.6-alpine}
     restart: ${RESTART:-always}
     volumes:
       - postgresql-data:/var/lib/postgresql/data
@@ -123,7 +123,7 @@ services:
     command: [ "zammad-railsserver" ]
 
   zammad-redis:
-    image: redis:${REDIS_VERSION:-7.4.8-alpine}
+    image: redis:${REDIS_VERSION:-7.4.5-alpine}
     restart: ${RESTART:-always}
     volumes:
       - redis-data:/data