Update postgres:18-alpine Docker digest to 96d56f7 (#4321)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| postgres | digest | `54451ec` → `96d56f7` |

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docker-compose-dev.yml

@@ -58,7 +58,7 @@ x-flow-worker-env: &flow-worker-env
 services:
   catalog:
     container_name: catalog
-    image: postgres:18-alpine@sha256:54451ecb8ab38c24c3ec123f2fd501303a3a1856a5c66e98cecf2460d5e1e9d7
+    image: postgres:18-alpine@sha256:96d56f7f57c6aacd1fcb908bc83b345ec5f83231ee486dd66a1baadce274db88
     command: -c config_file=/etc/postgresql.conf
     ports:
       - *peerdb-catalog-port

docker-compose.yml

@@ -34,7 +34,7 @@ x-flow-worker-env: &flow-worker-env
 services:
   catalog:
     container_name: catalog
-    image: postgres:18-alpine@sha256:54451ecb8ab38c24c3ec123f2fd501303a3a1856a5c66e98cecf2460d5e1e9d7
+    image: postgres:18-alpine@sha256:96d56f7f57c6aacd1fcb908bc83b345ec5f83231ee486dd66a1baadce274db88
     command: -c config_file=/etc/postgresql.conf
     restart: unless-stopped
     ports: