Add a workflow to build gems consistently (#8830)
Add a workflow to build gems consistently (#8830)

Merge pull request 8830
ryanshaw/jekyll,fulldecent/jekyll,jekyll/jekyll,chrisfinazzo/jekyll,fulldecent/jekyll,jekyll/jekyll,chrisfinazzo/jekyll,fulldecent/jekyll,jekyll/jekyll,chrisfinazzo/jekyll,ryanshaw/jekyll,jekyll/jekyll,ryanshaw/jekyll,ryanshaw/jekyll,chrisfinazzo/jekyll,fulldecent/jekyll