Update Dockerfile to rockylinux:8 and Puppet yum repository to puppet7. - #4

Update Dockerfile to rockylinux:8 and Puppet yum repository to puppet7.#4

bschonec wants to merge 4 commits into

irasnyd:masterirasnyd/puppet-parser-validate-action:masterfrom

bschonec:update_dockerfilebschonec/puppet-parser-validate-action:update_dockerfileCopy head branch name to clipboard