Refactor: Rename 8.6.1 variant to alpine 3.19 #155

Job	Run time
build-2-4-6-0	1m 37s
build-2-6-20	1m 54s
build-2-10-7	3m 29s
build-2-3-0-0	1m 34s
build-2-7-17	2m 0s
build-2-9-18	2m 8s
build-4-8-0	4m 0s
build-2-8-19	2m 18s
build-5-8-0	4m 41s
build-8-6-1	3m 50s
build-6-6-0	3m 12s
build-7-5-0	3m 32s
test-nogitdiff	24s
publish-draft-release	0s
update-dockerhub-description	0s
update-draft-release	0s
	34m 39s

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