Add installation checks + CI Workflow #3

Job	Run time
bookworm / build	4m 5s
bullseye / build	3m 26s
bullseye / test (pi, run_install_common.sh)	14m 23s
bullseye / test (pi, run_install_faststartup.sh)	9m 18s
bullseye / test (pi, run_install_webapp_local.sh)	15m 45s
bullseye / test (pi, run_install_webapp_download.sh)	15m 30s
bullseye / test (hans, run_install_user_not_pi.sh)	41s
bookworm / test (pi, run_install_common.sh)	14m 43s
bookworm / test (pi, run_install_faststartup.sh)	9m 30s
bookworm / test (pi, run_install_webapp_local.sh)	14m 24s
bookworm / test (pi, run_install_webapp_download.sh)	14m 49s
bookworm / test (hans, run_install_user_not_pi.sh)	37s
bookworm / cleanup	2s
bullseye / cleanup	2s
	1h 57m 15s

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