Bump gRPC to 1.19.0 and protobuf to 3.7.1

These upgrades are necessary to support Ruby 2.6.

This matches the Gitaly MR:
https://gitlab.com/gitlab-org/gitaly/merge_requests/1066

Gemfile

@@ -418,9 +418,9 @@ end
 # Gitaly GRPC client
 gem 'gitaly-proto', '~> 1.19.0', require: 'gitaly'
 
-gem 'grpc', '~> 1.15.0'
+gem 'grpc', '~> 1.19.0'
 
-gem 'google-protobuf', '~> 3.6'
+gem 'google-protobuf', '~> 3.7.1'
 
 gem 'toml-rb', '~> 1.0.0', require: false
 

Gemfile.lock

@@ -317,8 +317,8 @@ GEM
       mime-types (~> 3.0)
       representable (~> 3.0)
       retriable (>= 2.0, < 4.0)
-    google-protobuf (3.6.1)
-    googleapis-common-protos-types (1.0.3)
+    google-protobuf (3.7.1)
+    googleapis-common-protos-types (1.0.4)
       google-protobuf (~> 3.0)
     googleauth (0.6.6)
       faraday (~> 0.12)
@@ -349,7 +349,7 @@ GEM
       railties
       sprockets-rails
     graphql (1.8.1)
-    grpc (1.15.0)
+    grpc (1.19.0)
       google-protobuf (~> 3.1)
       googleapis-common-protos-types (~> 1.0.0)
     haml (5.0.4)
@@ -1063,7 +1063,7 @@ DEPENDENCIES
   gitlab_omniauth-ldap (~> 2.1.1)
   gon (~> 6.2)
   google-api-client (~> 0.23)
-  google-protobuf (~> 3.6)
+  google-protobuf (~> 3.7.1)
   gpgme (~> 2.0.18)
   grape (~> 1.1.0)
   grape-entity (~> 0.7.1)
@@ -1071,7 +1071,7 @@ DEPENDENCIES
   grape_logging (~> 1.7)
   graphiql-rails (~> 1.4.10)
   graphql (~> 1.8.0)
-  grpc (~> 1.15.0)
+  grpc (~> 1.19.0)
   haml_lint (~> 0.28.0)
   hamlit (~> 2.8.8)
   hangouts-chat (~> 0.0.5)

changelogs/unreleased/sh-upgrade-grpc-and-protobuf.yml

+---
+title: Bump gRPC to 1.19.0 and protobuf to 3.7.1
+merge_request: 27086
+author:
+type: other