chore(deps): update postgres docker tag to v16.4 (#90)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| postgres | minor | `16.3-alpine` -> `16.4-alpine` |

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
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Co-authored-by: Joao P Dubas <joao.dubas+gitea@gmail.com>
Reviewed-on: #90
Co-authored-by: renovate-bot <renovate-bot@dubas.dev>
Co-committed-by: renovate-bot <renovate-bot@dubas.dev>

.drone.yml

@@ -9,7 +9,7 @@ trigger:
 
 steps:
   - name: database healthcheck
-    image: &postgres 'postgres:16.3-alpine'
+    image: &postgres 'postgres:16.4-alpine'
     environment:
       PGUSER: &db_user postgres
       PGPASSWORD: &db_pass postgres

docker-compose.yml

@@ -1,7 +1,7 @@
 ---
 services:
   db:
-    image: 'postgres:16.3-alpine'
+    image: 'postgres:16.4-alpine'
     hostname: &db_host db
     init: true
     environment: