Use gRPC 1.2.2

What does this MR do?

Use version 1.2.2 of the 'grpc' gem.

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

Versions below 1.2.2 failed to load after local compilation of native extensions.

https://github.com/grpc/grpc/issues/9998

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

https://github.com/grpc/grpc/issues/9998

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/30766

mentioned in issue #29562 (moved)

added Gitaly label

@jacobvosmaer-gitlab I don't have permissions to create pipelines in your fork. Could you either create one for this branch, or push again? Thanks!

assigned to @jacobvosmaer-gitlab

deleted source branch grpc-1.2.2

restored source branch grpc-1.2.2

Build is running now.

assigned to @smcgivern

mentioned in issue gitaly#154 (closed)

Javascript errors. Retrying.

enabled an automatic merge when the pipeline for e46f67a5 succeeds

ComponentsHelper
  #gitlab_workhorse_version
    without a Gitlab-Workhorse header
      shows the version from Gitlab::Workhorse.version (FAILED - 1697)
    with a Gitlab-Workhorse header
      shows the actual GitLab Workhorse version currently in use (FAILED - 1698)

An error occurred in an `after(:context)` hook.
  Mysql2::Error: Can't connect to MySQL server on 'mysql' (111)
  occurred at /builds/jacobvosmaer-gitlab/gitlab-ce/vendor/ruby/2.3.0/gems/mysql2-0.3.20/lib/mysql2/client.rb:70:in `connect'

WTF?

Mysql is the other Javascript. Retrying.

merged

Picked into 9-1-stable, will go into 9.1.0-rc2

mentioned in commit f99a8f66

mentioned in commit a9cffb80

mentioned in issue gitaly#191 (closed)