[WIP] test/e2e: add optional Azure Linux 4 cluster e2e test#6312

mboersma wants to merge 2 commits into

kubernetes-sigs:mainkubernetes-sigs/cluster-api-provider-azure:mainfrom

mboersma:e2e-azl4mboersma/cluster-api-provider-azure:e2e-azl4Copy head branch name to clipboard