Upgrade upload/artifacts and checkout actions to v4 #1176

Job	Run time
compile-examples (arduino:mbed:nano33ble)	5m 7s
compile-examples (arduino:mbed:envie_m7)	15m 55s
compile-examples (arduino:mbed:nanorp2040connect)	8m 43s
compile-examples (arduino:mbed:nicla_sense)	11m 42s
compile-examples (arduino:mbed:nicla_vision)	8m 47s
compile-examples (arduino:mbed:opta)	10m 57s
compile-examples (arduino:mbed:giga)	17m 17s
compile-examples (arduino:mbed:nicla_voice)	4m 24s
compile-examples (arduino:mbed:edge_control)	4m 30s
compile-examples (arduino:mbed:envie_m7:target_core=cm4, - libraries/KernelDebug - libraries/Port...	4m 27s
	1h 31m 49s

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