Support merge to ref for merge-commit and squash

Adds the ground work for writing into
the merge ref refs/merge-requests/:iid/merge the
merge result between source and target branches of
a MR, without further side-effects such as
mailing, MR updates and target branch changes.

1 files changed, 2 insertions, 1 deletions

diff --git a/Gemfile b/Gemfile
index 67ce615c01e..28666199c0f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -419,7 +419,8 @@ group :ed25519 do
 end
 
 # Gitaly GRPC client
-gem 'gitaly-proto', '~> 1.10.0', require: 'gitaly'
+gem 'gitaly-proto', '~> 1.12.0', require: 'gitaly'
+
 gem 'grpc', '~> 1.15.0'
 
 gem 'google-protobuf', '~> 3.6'