puppet 7 has now ruby 2.7

5 jobs for master in 9 minutes and 44 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
failed #9116
rpmbuild
build_el7

00:00:12

passed #9109
rpmbuild
build_el8

00:09:07

failed #9108
rpmbuild
build_el7

00:00:12

 
  Push
skipped #9110
rpmbuild
push_el7
passed #9111
rpmbuild
push_el8

00:00:25

 
Name Stage Failure
failed
build_el7 Build

https://wiki.centos.org/yum-errors

If above article doesn't help to resolve this issue please use https://bugs.centos.org/.

failure: repodata/repomd.xml from centos-sclo-rh-source: [Errno 256] No more mirrors to try.
http://vault.centos.org/centos/7/sclo/Source/rh/repodata/repomd.xml: [Errno 14] HTTPS Error 404 - Not Found
Cleaning up file based variables
ERROR: Job failed: exit code 1