[ca]: Upgrade PriorityClass api version in FAQ.md
[ca]: Upgrade PriorityClass api version in FAQ.md

Signed-off-by: Sergey Shevchenko <7b2a433893ffedce620258a5b8f91ad49b8bf929@gmail.com>

mmerrill3/autoscaler,mmerrill3/autoscaler,kubernetes/autoscaler,mmerrill3/autoscaler,mmerrill3/autoscaler,kubernetes/autoscaler,kubernetes/autoscaler,kubernetes/autoscaler