ci: Stop archiving packages

This takes up a lot of storage space and we're almost hitting the
limit so since nobody's actually using these and we just started
doing nightly builds in OBS, let's drop this and point people towards
OBS for nightly packages in the future.

.github/workflows/mkosi.yml

@@ -221,15 +221,3 @@ jobs:
             build/test/journal/*.journal
             build/meson-logs/*
           retention-days: 7
-
-      - name: Archive packages
-        uses: actions/upload-artifact@v4
-        if: (success() || failure()) && (github.repository == 'systemd/systemd' || github.repository == 'systemd/systemd-stable')
-        with:
-          name: ci-mkosi-${{ github.run_id }}-${{ github.run_attempt }}-${{ matrix.distro }}-${{ matrix.release }}-packages
-          path: |
-            build/mkosi.output/*.rpm
-            build/mkosi.output/*.deb
-            build/mkosi.output/*.ddeb
-            build/mkosi.output/*.pkg.tar
-          retention-days: 4