Update docker.io/library/postgres Docker tag to v18.3

dockhand/compose.yaml

@@ -1,7 +1,7 @@
 services:
   dockhand_db:
     container_name: dockhand_db
-    image: docker.io/library/postgres:18.3@sha256:69e8582b781cb44fa4557b98ed586fe68361e320d9b12f9707494335634f4f3d
+    image: docker.io/library/postgres:18.3@sha256:5aa97b304990f15e4625725b124c47df65746ec249bd3e2fdf3cf9dbd458326d
     restart: unless-stopped
     environment:
       - POSTGRES_USER=${POSTGRES_USER}

lldap/compose.yaml

@@ -1,7 +1,7 @@
 services:
   lldap_db:
     container_name: lldap_db
-    image: docker.io/library/postgres:18.3@sha256:69e8582b781cb44fa4557b98ed586fe68361e320d9b12f9707494335634f4f3d
+    image: docker.io/library/postgres:18.3@sha256:5aa97b304990f15e4625725b124c47df65746ec249bd3e2fdf3cf9dbd458326d
     restart: unless-stopped
     environment:
       - POSTGRES_USER=${POSTGRES_USER}

pocket-id/compose.yaml

@@ -1,7 +1,7 @@
 services:
   pocket-id-db:
     container_name: pocket-id-db
-    image: docker.io/library/postgres:18.3@sha256:69e8582b781cb44fa4557b98ed586fe68361e320d9b12f9707494335634f4f3d
+    image: docker.io/library/postgres:18.3@sha256:5aa97b304990f15e4625725b124c47df65746ec249bd3e2fdf3cf9dbd458326d
     restart: unless-stopped
     environment:
       - POSTGRES_USER=${POSTGRES_USER}