[feat] Don't install rubygems package on every run

I merged immerda's changes to the `rubygems` module, which
remove the installation of the `rubygems` package from jessie
on, because it's a dependency of the `ruby2.1` package, which is
a dep of puppet, and therefore installed on every node.

- Tested: [local singlenode]
- Resolves: #7619

1 files changed, 0 insertions, 0 deletions

diff --git a/puppet/modules/rubygems b/puppet/modules/rubygems
-Subproject ef820cfec3321d17be99ef814318adb4e3cc1e9
+Subproject e704c9fe1c40fea5b10fe3ca2b4f5de825341cc