chore(deps): update docker.io/postgres docker tag to v17

docker-compose.yml

@@ -19,7 +19,7 @@ services:
       - matrix
 
   db:
-    image: docker.io/postgres:17.3-alpine@sha256:63d02e405f2f1780189dda1220301f90be02d191d7fb06a2a54c56efbe742092
+    image: docker.io/postgres:17.3-alpine@sha256:19d45ecfb59f9ff8f440ee99d378abcea273b7d66bbac1cf1f9d6e41d8dcb3f3
     restart: unless-stopped
     environment:
       - POSTGRES_USER=${DC_MATRIX_POSTGRES_USER:-synapse}