- systemd.spec: add journal translations to lang package

- Import commmit 1f73719d67b9300c6bb75232d695d03410991098
1f73719d67 test-mountpoint-util: /root might be mounted
a391ba4a8f test: testsuite-35.sh needs manual/test-session-properties to be installed on SUSE

- Upgrade to v254.1 (commit 208a21833b6953a2517a6c3f8f4849c6664b01be)
See https://github.com/openSUSE/systemd/blob/SUSE/v254/NEWS for details.
This includes the following bug fixes:
- upstream commit 331aa7aa15ee5dd12b369b276f575d521435eb52 (bsc#1203141)
- upstream commit 529ba8a1a3968564b67049a077f213e3a0d53070 (bsc#1209340)
- upstream commit f1f331a252d22c15f37d03524cce967664358c5c (bsc#1186606)
- upstream commit df1dccd25547b430258bd42ec60428fc9aff1370 (bsc#1213185)
* Drop 5001-Revert-core-propagate-stop-too-if-restart-is-issued.patch. A fix
for https://github.com/systemd/systemd/issues/26839 has been integrated in
v254.
* Drop 5002-Revert-core-service-when-resetting-PID-also-reset-kn.patch, it's
part of v254.
* Drop 0001-restore-var-run-and-var-lock-bind-mount-if-they-aren.patch, it's
no more needed these days.
* Rebase 0001-conf-parser-introduce-early-drop-ins.patch