Revert "Update gems"
Revert "Update gems"

Seems pipeline isn't storing any build records after this commit.

So reverting just to see if it fixes anything. I would have guessed that
it would have been the Rails 6 update that would be the culpit, but that
seemed to work for two days…

This reverts commit d15a5c798b0b1a09181a8503d796bf1d6ba93dde.

barsoom/pipeline,barsoom/pipeline,barsoom/pipeline,barsoom/pipeline