bots: Enable several lorax checks
bots: Enable several lorax checks

Revert "bots: Don't automatically run fedora-30/tar on lorax".
https://github.com/weldr/lorax/pull/792 (tar test) has been merged
so we can start running this in CI.

Automatically run rhel-8-1 tests on lorax.
https://github.com/weldr/lorax/pull/782 (CI backports) has been
merged so we can now start executing these tests in CI.


Closes #12768
mvollmer/cockpit,martinpitt/cockpit,cockpituous/cockpit,martinpitt/cockpit,deryni/cockpit,cockpit-project/cockpit,mvollmer/cockpit,deryni/cockpit,moraleslazaro/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,garrett/cockpit,mvollmer/cockpit,cockpit-project/cockpit,cockpituous/cockpit,mvollmer/cockpit,martinpitt/cockpit,martinpitt/cockpit,cockpituous/cockpit,garrett/cockpit,cockpit-project/cockpit,garrett/cockpit,moraleslazaro/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,deryni/cockpit,moraleslazaro/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,garrett/cockpit,deryni/cockpit,martinpitt/cockpit,deryni/cockpit,deryni/cockpit,cockpituous/cockpit,garrett/cockpit,deryni/cockpit