chore(deps): update postgres docker tag to v15.4

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:15.3-alpine@sha256:4ca65a9209f164bdb30f715ac2ed9182cc0737d0f0a549031b3c1b0b7e652f3a
+    image: postgres:15.4-alpine@sha256:8bc3c893342c766481df5fde58fab6f1a1115b94eb56778126163305243e9709
     secrets:
     - postgres_db
     - postgres_password