chore(deps): update postgres docker tag to v17.4 (#20)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| postgres | minor | `17.2` -> `17.4` |

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Reviewed-on: #20
Co-authored-by: Renovate <renovate@csw.im>
Co-committed-by: Renovate <renovate@csw.im>

docker-compose.yml

@@ -42,7 +42,7 @@ services:
 
   database:
     container_name: looking-glass-db
-    image: postgres:17.2@sha256:3267c505060a0052e5aa6e5175a7b41ab6b04da2f8c4540fc6e98a37210aa2d3
+    image: postgres:17.4@sha256:7f29c02ba9eeff4de9a9f414d803faa0e6fe5e8d15ebe217e3e418c82e652b35
     restart: always
     environment:
       POSTGRES_USER: LookingGlass