✨ Update all for Postgres and new techniques

{{cookiecutter.project_slug}}/backend/app/scripts/lint.sh

@@ -5,3 +5,4 @@ set -x
 autoflake --remove-all-unused-imports --recursive --remove-unused-variables --in-place app --exclude=__init__.py
 isort --multi-line=3 --trailing-comma --force-grid-wrap=0 --combine-as --line-width 88 --recursive --apply app
 black app
+vulture app