rename -service subpackages to -systemd

Current systemd support includes -service subpackages for some things, we need to make sure that all subpackages for systemd-related unit files, config, etc are named -systemd. I believe this will require changes to our abuild patches(?), but I'm not sure what else. At the very least some packages in master_staging_systemd need to be changed (e.g. polkit and networkmanager)

TODO:

• Fix abuild patch in systemd staging repo AND in patch submitted upstream to use -systemd for subpkg name

  • https://gitlab.alpinelinux.org/alpine/abuild/-/merge_requests/272
  • 04b3e2a4
  • eb90c0bf

• Rename -service --> -systemd for subpackages in pmaports master and systemd staging repo

  • rename in staging branch: !5315 (merged)
  • rename in master branch: !5342 (merged)

• Rename/adjust systemd-services package in systemd staging repo

  • !5315 (merged)