chore(deps): update postgres docker tag to v17 (#192)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| postgres | major | `16.4` -> `17.0` |

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Reviewed-on: https://git.mgrote.net///mg/homeserver/pulls/192
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docker-compose/miniflux/docker-compose.yml.j2

@@ -33,7 +33,7 @@ services:
 ######## Postgres ########
   mf-db16:
     container_name: "mf-db16"
-    image: "postgres:16.4"
+    image: "postgres:17.0"
     restart: always
     environment:
       POSTGRES_USER: miniflux