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:d8bb4852e30c168a99654c9fa0673f51e4419cf96e931dbfe163fd8680bf1dba
+    image: postgres:18.0-alpine@sha256:fadc2b63607986d054ccb7302ca6fedc7bb9b6586d03f2110ae3fbc1ce806693
     secrets:
     - postgres_db
     - postgres_password