Update actions/upload-artifact digest to a8a3f3a #775

Job	Run time
test	1m 15s
integration-test (community-6.1.2-ga)	2m 41s
integration-test (community-6.2.0-ga)	3m 6s
integration-test (community-7.0.0)	3m 2s
integration-test (community-7.1.1)	3m 11s
integration-test (community-7.2.0)	3m 18s
integration-test (community-7.3.0)	3m 0s
integration-test (community-7.4.0)	3m 7s
integration-test (enterprise-6.1.1)	3m 46s
integration-test (enterprise-6.2.2)	3m 26s
integration-test (enterprise-7.0.1)	3m 30s
integration-test (enterprise-7.1.0)	4m 6s
integration-test (enterprise-7.2.0)	3m 38s
integration-test (enterprise-7.3.0)	3m 15s
integration-test (enterprise-7.4.0)	3m 21s
publish-maven-images	0s
publish-docker-images	0s
	47m 42s

Provide feedback