ci: shorten PR title lint message (#3345)
ci: shorten PR title lint message (#3345)

This message was really tall, so make it a lot shorter.

Also, fix a bug where the username wasn't being passed to the
message function.
quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot