Switch master to Rocky, set queens tag for centos-queens
Switch master to Rocky, set queens tag for centos-queens

After [1] is merged, we need to switch the tags for several builders:

- centos-master-uc will use rocky-uc (queens-uc before)
- centos-master will use rocky  (queens before)
- centos-queens will use queens (queens-uc before)

[1] - https://review.rdoproject.org/r/12150

Change-Id: I0733ca42d2d46be31a601f3d4819e9fdeba026d9
Depends-On: I705f8da06353c78cb578b2b3574dcc33e2c35c58

javierpena/puppet-delorean,javierpena/puppet-delorean,rdo-infra/puppet-dlrn,rdo-infra/puppet-dlrn,rdo-infra/puppet-dlrn,javierpena/puppet-delorean