chore(deps): update postgres docker tag to v18.4

Author: renovate[bot]

src/development/stack.yml

@@ -78,7 +78,7 @@ services:
     environment:
       POSTGRES_DB: drinks
       POSTGRES_PASSWORD: postgres
-    image: postgres:18.3-alpine@sha256:54451ecb8ab38c24c3ec123f2fd501303a3a1856a5c66e98cecf2460d5e1e9d7
+    image: postgres:18.4-alpine@sha256:eb37f58646a901dc7727cf448cae36daaefaba79de33b5058dab79aa4c04aefb
     volumes:
     - postgres-data:/var/lib/postgresql
     - ../production/data/postgres/01-schema.sql:/docker-entrypoint-initdb.d/01-schema.sql