Improved release workflow to work with download/upload actions v4 (#1… #86

Job	Run time
generate-test-packages-matrix	0s
release-started	0s
build / setup-build-matrix / setup-build-matrix	1s
build / build-agent-library (linux-x86-64)	5m 58s
build / build-agent-library (linuxmusl-x86-64)	5m 29s
build / build-agent-library (linux-arm64, 1)	7m 31s
build / build-agent-library (linuxmusl-arm64, 1)	6m 55s
build-packages / build-packages (x86-64)	44s
build-packages / build-packages (arm64)	42s
sign	1m 43s
test-packages	0s
release	0s
notify	2s
	29m 5s

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