chore(deps): update postgres docker tag to v18

Author: renovate[bot]

src/development/stack.yml

@@ -67,7 +67,7 @@ services:
       POSTGRES_DB_FILE: /run/secrets/postgres_db
       POSTGRES_PASSWORD_FILE: /run/secrets/postgres_password
       POSTGRES_USER_FILE: /run/secrets/postgres_user
-    image: postgres:17.6-alpine@sha256:855021a5b10954343902a8c22a15f8464233126c1d12d9ad84d4a14c5af07a80
+    image: postgres:18.0-alpine@sha256:9636ae7feacd8d630303eede7f95cd0f472d514e7864422c6aa8ea07b2171df8
     secrets:
     - postgres_db
     - postgres_password