Support latest Ruby for http gem upgrade
Addresses competition with Gem locks that I see started downstream: gitlab-org/release-tools!2883
We bump the version of Ruby, we just go straight to latest here. All tests pass thus there should be no need to step through each version.
We then bump our dependency which is failing downstream, the http
gem. Here, again, we're going with the latest version, which includes appropriate ruby support.
Edited by John Skarbek