Bump mopidy-spotify from 5.0.0a2 to 5.0.0a3 #286

Job	Run time
bookworm armv7 / build	1m 44s
bullseye armv7 / build	1m 55s
bookworm armv7 / test (pi, run_installation_classic.sh)	11m 42s
bookworm armv7 / test (pi, run_installation_rfid.sh)	12m 32s
bookworm armv7 / test (pi, run_installation_spotify.sh)	15m 39s
bookworm armv7 / test (pi, run_installation_staticip_dhcpcd.sh)	11m 36s
bookworm armv7 / test (pi, run_installation_autohotspot_dhcpcd.sh)	12m 18s
bookworm armv7 / test (pi, run_installation_autohotspot_NetworkManager.sh)	12m 19s
bookworm armv7 / test (hans, run_installation_classic.sh)	1m 1s
bullseye armv7 / test (pi, run_installation_classic.sh)	4m 36s
bullseye armv7 / test (pi, run_installation_rfid.sh)	4m 52s
bullseye armv7 / test (pi, run_installation_spotify.sh)	8m 44s
bullseye armv7 / test (pi, run_installation_staticip_dhcpcd.sh)	4m 45s
bullseye armv7 / test (pi, run_installation_autohotspot_dhcpcd.sh)	5m 24s
bullseye armv7 / test (pi, run_installation_autohotspot_NetworkManager.sh)	5m 37s
bullseye armv7 / test (hans, run_installation_classic.sh)	57s
bullseye armv7 / cleanup	3s
bookworm armv7 / cleanup	2s
	1h 55m 46s

Provide feedback