chore(deps): update postgres:18.1-alpine docker digest to b40d931

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:18.1-alpine@sha256:b5f0dfb46e028c156ff4e3dd2908fdf3474e6bd7837902d0e0151e4e30ad711f
+    image: postgres:18.1-alpine@sha256:b40d931bd0e7ce6eecc59a5a6ac3b3c04a01e559750e73e7086b6dbd7f8bf545
     secrets:
     - postgres_db
     - postgres_password