(maint) Update pinned Beaker version to 2.22
(maint) Update pinned Beaker version to 2.22

This commit updates the pinned Beaker version to
2.22 to support changes to the puppet-agent
package name and PE repo structure for Mac OS X.

MikaelSmith/marionette-collective,johnduarte/marionette-collective,shrug/marionette-collective,puppetlabs/marionette-collective,MikaelSmith/marionette-collective,johnduarte/marionette-collective,puppetlabs/marionette-collective,johnduarte/marionette-collective,pimpajr/marionette-collective,shrug/marionette-collective,puppetlabs/marionette-collective,johnduarte/marionette-collective,pimpajr/marionette-collective,MikaelSmith/marionette-collective,pimpajr/marionette-collective,MikaelSmith/marionette-collective,pimpajr/marionette-collective,pimpajr/marionette-collective,johnduarte/marionette-collective,MikaelSmith/marionette-collective,shrug/marionette-collective,shrug/marionette-collective,shrug/marionette-collective,johnduarte/marionette-collective,MikaelSmith/marionette-collective,puppetlabs/marionette-collective,shrug/marionette-collective,puppetlabs/marionette-collective,puppetlabs/marionette-collective,pimpajr/marionette-collective