fix: schedule weekly full postgres backup

.gitea/workflows/ci.yml

@@ -80,13 +80,11 @@ jobs:
           test -f "$release"
           archive_version="$(tar -xOf "$release" ./app/version.py | sed -n 's/^BACKEND_VERSION = "\(.*\)"$/\1/p')"
           test "$archive_version" = "$EXPECTED_BACKEND_VERSION"
-          mkdir -p "$HOME/backups/miem_workers"
-          backup="$HOME/backups/miem_workers/miem_workers-$(date +%Y%m%d-%H%M%S).sql"
-          docker compose exec -T postgres sh -c 'pg_dump -U "$POSTGRES_USER" "$POSTGRES_DB"' > "$backup"
           docker run --rm \
             -v "$release:/src/release.tar:ro" \
             -v "$PROD_PATH":/dst \
             alpine:3.20 sh -c 'tar -xf /src/release.tar -C /dst'
+          /srv/miem_workers/infra/install-postgres-backup-cron.sh
           docker compose up -d --build
           runtime_version="$(docker compose exec -T api python -c 'from app.version import BACKEND_VERSION; print(BACKEND_VERSION)')"
           test "$runtime_version" = "$EXPECTED_BACKEND_VERSION"
@@ -95,7 +93,6 @@ jobs:
             *"\"status\":\"ok\""*"\"backend_version\":\"$EXPECTED_BACKEND_VERSION\""*) ;;
             *) echo "Unexpected health response: $health" >&2; exit 1 ;;
           esac
-          find "$HOME/backups/miem_workers" -maxdepth 1 -type f -name 'miem_workers-*.sql' ! -path "$backup" -delete
           docker compose ps
           rm -f "$release"
           REMOTE