Add rubygems 3.3.9, remove rubygems 3.3.8
Add rubygems 3.3.9, remove rubygems 3.3.8

for stack(s) cflinuxfs3 [#181512696]

cloudfoundry/ruby-buildpack,cloudfoundry/ruby-buildpack,cloudfoundry/ruby-buildpack,cloudfoundry/ruby-buildpack,cloudfoundry/ruby-buildpack