Fix reverse DNS lookup for current hostname in GitHub Actions CI Runner VMs#7588

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lhotari wants to merge 2 commits intotrinodb:masterfrom

lhotari:lh-fix-reverse-hostname-lookup

Commits on Apr 14, 2021

Add current ip address, long hostname and short hostname to /etc/hosts
lhotari
committed

Commits on Apr 15, 2021

Improve clarity of tune-runner-vm action
lhotari
committed