Backport request: Rubygems-2.6.13
Rubygems-2.6.13 has been released now.
Its version was required to backport all stable versions of Ruby.
I created patches about rubygems 2.6.13.
For Ruby 2.2 and 2.3: These patches contain only security fixes of rubygems-2.6.13
For Ruby 2.4: This patches are rubygems-2.6.12 and 2.6.13.