build(deps): bump systemd/mkosi
Bumps [systemd/mkosi](https://github.com/systemd/mkosi) from
2c9954fa51a3a995bbdc02db6ef51f5bd27bc1ba to
3454f7bd4ef0336ec80a117d593baaef0fe53398.
- [Release notes](https://github.com/systemd/mkosi/releases)
- [Commits](https://github.com/systemd/mkosi/compare/
2c9954fa51a3a995bbdc02db6ef51f5bd27bc1ba...
3454f7bd4ef0336ec80a117d593baaef0fe53398)
---
updated-dependencies:
- dependency-name: systemd/mkosi
dependency-type: direct:production
...
Signed-off-by: dependabot[bot] <support@github.com>