Rename references to "node-role.kubernetes.io/master"

[vincepri]

See upstream Kubeadm issue kubernetes/kubeadm#2200

/kind cleanup
/wg naming
/milestone Next

[kplimack]

👏 @vincepri
💯

[fejta-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

Send feedback to sig-testing, kubernetes/test-infra and/or fejta.
/lifecycle stale

[vincepri]

/lifecycle frozen

[vincepri]

/milestone v1.1

Ref: https://grep.app/search?current=2&q=node-role.kubernetes.io/master&filter[repo][0]=kubernetes-sigs/cluster-api

/assign @randomvariable @sbueringer