Utilize get_target_major_version in no enabled target repositories report#1151

pirat89 merged 2 commits intooamg:masteroamg/leapp-repository:masterfrom

andywaltlova:update-doc-link-based-on-target-versionandywaltlova/leapp-repository:update-doc-link-based-on-target-versionCopy head branch name to clipboard