feat(26.04): minimal fix of systemd

[lczyk]

Proposed changes

this is a minimal fix of missing files in systemd to unblock libnode. systemd will still need a bunch of work, already PRed in #878

#878 will be able to easily rebase on top of this PR

Related issues/PRs

• unblockshttps://github.com/chore(26.04): bump libnode to 127 #873
• feat(26.04): improve systemd slices #878

Forward porting

n/a

Checklist

• I have read the contributing guidelines
• I have tested my changes (see how)
• I have already submitted the CLA form

[github-actions]

Test Coverage

Average Total Coverage: 76.19%

---

Arch: aarch64

Coverage: 76.19%

systemd: 🌂 76.19% (5 missing)

systemd_dbus-services
systemd_extras
systemd_kernel-install
systemd_polkit
systemd_udev-rules

---

Arch: x86_64

Coverage: 76.19%

systemd: 🌂 76.19% (5 missing)

systemd_dbus-services
systemd_extras
systemd_kernel-install
systemd_polkit
systemd_udev-rules

[lczyk]

adding 'priority' since a blocker for libnode which is a priority

[alesancor1]

LGTM, mostly deleted contents that are not there anymore 👍

[lczyk]

ready to merge with only one approval since 26.04 is still in devel, and this PR does not introduce any new slices / files.

will wait for CI to finish, so just marking it as ready to merge for now