GerritAccess, LUCI: update vote names

LUCI trybots have become the default by now.
See https://groups.google.com/g/golang-dev/c/Oq1LDUmIyLg/m/QV9wEb75AAAJ.

Change-Id: Ib697a6509bcbbac7a893dd4fd4d9e19fe56d22a8
Reviewed-on: https://go-review.googlesource.com/c/wiki/+/566276
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>