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

docker-compose.yml

@@ -19,7 +19,7 @@ services:
       - matrix
 
   db:
-    image: docker.io/postgres:12.22-alpine@sha256:3ffb16819255d9439252e1409a5f33e2c96201be134dd37b41e7d3340003ee5c
+    image: docker.io/postgres:17.2-alpine@sha256:c06885332d687650faea9901660ab39a6361565b39e5e5c320ef56bd3cfa7733
     restart: unless-stopped
     environment:
       - POSTGRES_USER=${DC_MATRIX_POSTGRES_USER:-synapse}