The prow-action plugin will pre-pend `area` or `kind` to labels, so
unify them into a common format.
Signed-off-by: Nolan Brubaker <brubakern@vmware.com>
The labels 'Documentation', 'Website', and 'Design' are all for PRs
exclusively related to those things, not code, so they don't need to be
checked for changelogs or have the extra label applied.
Signed-off-by: Nolan Brubaker <brubakern@vmware.com>