refactor: outsource boot_logs and systemctl_services #110

Job	Run time
bullseye armv7 / build	3m 12s
bookworm armv7 / build	4m 0s
bullseye armv7 / test (run_install_common.sh)	13m 50s
bullseye armv7 / test (run_install_faststartup.sh)	10m 29s
bullseye armv7 / test (run_install_webapp_local.sh)	22m 4s
bullseye armv7 / test (run_install_webapp_download.sh)	14m 42s
bullseye armv7 / test (run_install_libzmq_local.sh)	24m 7s
bookworm armv7 / test (run_install_common.sh)	13m 39s
bookworm armv7 / test (run_install_faststartup.sh)	10m 34s
bookworm armv7 / test (run_install_webapp_local.sh)	20m 58s
bookworm armv7 / test (run_install_webapp_download.sh)	13m 40s
bookworm armv7 / test (run_install_libzmq_local.sh)	24m 34s
bullseye armv7 / cleanup	2s
bookworm armv7 / cleanup	3s
	2h 55m 54s

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