Remove Buster Support #197

Job	Run time
bullseye armv7 / build	1m 33s
bookworm armv7 / build	1m 36s
bullseye armv7 / test (pi, run_installation_classic.sh)	4m 59s
bullseye armv7 / test (pi, run_installation_rfid.sh)	5m 10s
bullseye armv7 / test (pi, run_installation_spotify.sh)	7m 50s
bullseye armv7 / test (pi, run_installation_staticip_dhcpcd.sh)	5m 10s
bullseye armv7 / test (pi, run_installation_autohotspot_dhcpcd.sh)	9m 52s
bullseye armv7 / test (pi, run_installation_autohotspot_NetworkManager.sh)	5m 10s
bullseye armv7 / test (hans, run_installation_classic.sh)	53s
bookworm armv7 / test (pi, run_installation_classic.sh)	5m 22s
bookworm armv7 / test (pi, run_installation_rfid.sh)	6m 19s
bookworm armv7 / test (pi, run_installation_spotify.sh)	6m 48s
bookworm armv7 / test (pi, run_installation_staticip_dhcpcd.sh)	5m 13s
bookworm armv7 / test (pi, run_installation_autohotspot_dhcpcd.sh)	5m 58s
bookworm armv7 / test (pi, run_installation_autohotspot_NetworkManager.sh)	5m 31s
bookworm armv7 / test (hans, run_installation_classic.sh)	1m 21s
bookworm armv7 / cleanup	0s
bullseye armv7 / cleanup	5s
	1h 18m 50s

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