Build

Revert "Bump upload/download-artifacts from v3 to v4" #1369

Job	Run time
compiler (ubuntu-20.04)	3m 5s
compiler (ubuntu-22.04)	2m 15s
lib-swift	42s
lib-rust	3m 47s
lib-java-kotlin	3m 54s
lib-go (1.20)	1m 39s
lib-python (3.x)	1m 36s
lib-go (1.21)	1m 31s
cross-test (java, java,kotlin)	1m 54s
cross-test (java, go,rs)	1m 35s
cross-test (java, swift)	26s
cross-test (kotlin, java,kotlin)	30s
cross-test (kotlin, go,rs)	25s
cross-test (kotlin, swift)	49s
cross-test (go, java,kotlin)	42s
cross-test (go, go,rs)	50s
cross-test (go, swift)	41s
cross-test (rs, java,kotlin)	30s
cross-test (rs, go,rs)	58s
cross-test (rs, swift)	53s
cross-test (swift, java,kotlin)	23s
cross-test (swift, go,rs)	1m 18s
cross-test (swift, swift)	28s
	30m 51s

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