Upgrade upload/artifacts and checkout actions to v4 #1175

Job	Run time
compile-examples (arduino:mbed:nano33ble)	5m 16s
compile-examples (arduino:mbed:envie_m7)	15m 15s
compile-examples (arduino:mbed:nanorp2040connect)	8m 34s
compile-examples (arduino:mbed:nicla_sense)	11m 40s
compile-examples (arduino:mbed:nicla_vision)	8m 12s
compile-examples (arduino:mbed:opta)	10m 50s
compile-examples (arduino:mbed:giga)	16m 56s
compile-examples (arduino:mbed:nicla_voice)	4m 35s
compile-examples (arduino:mbed:edge_control)	4m 29s
compile-examples (arduino:mbed:envie_m7:target_core=cm4, - libraries/KernelDebug - libraries/Port...	4m 33s
	1h 30m 20s

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