Update GitLab to 11.10.4

@all: Here's a small task list to update GitLab to 11.10.4.

TODO

• Troubleshoot and fix ssh clone error - opened upstream issue https://gitlab.com/gitlab-org/gitaly/issues/1667
• track yarn.lock status https://gitlab.com/gitlab-org/gitlab-ce/issues/61954 and make yarn.lock writable
• send merge request upstream to update sentry-raven gem (sync with gitaly) (https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/29352)
• send merge request upstream to update golang-gitaly-proto/gitaly-proto gem (sync with gitaly) (https://gitlab.com/gitlab-org/gitaly/merge_requests/1300/)
• send merge request upstream to update opentracing gem (sync with version in debian)
• ask ftp masters to fast track libgit2

To update a gem,

1. just fork gitlab-ce,
2. create a new branch,
3. edit Gemfile,
4. run bundle update <gem name>,
5. commit both Gemfile and Gemfile.lock and
6. then send merg request

Gitlab components

• gitlab-shell
• gitlab-workhorse
• gitaly

Patch updates

• httparty | ~> 0.16.4 | 0.16.2+dfsg1
• rack-oauth2 | ~> 1.9.3 | 1.9.2

Minor updates (Stable)

• gitaly-proto | ~> 1.19.0 | 1.14.0+dfsg
• deckar01-task_list | 2.2.0 | 2.0.0

Minor updates (Development)

• rugged | ~> 0.28 | 0.27.4+ds - this will involve libgit2 transition

Major updates

• bootstrap_form | ~> 4.2.0 | 2.7.0

Already Newer

• actioncable | = 5.0.7.2 | 5.2.2.1+dfsg
• character_set | ~> 1.0.0 | 1.1.2
• kaminari-actionview | = 1.0.0 | 1.0.1
• actionview | = 5.0.7.2 | 5.2.2.1+dfsg
• rack-test | ~> 0.6.2 | 0.7.0
• coercible | ~> 0.2 | 1.0.0
• actionpack | <= 5.1.0, >= 4 | 5.2.2.1+dfsg
• axiom-types | ~> 0.0.5 | 0.1.1
• diffy | ~> 3.1.0 | 3.2.1
• google-api-client | ~> 0.23.0 | 0.28.4
• kaminari-core | = 1.0.0 | 1.0.1
• omniauth_crowd | ~> 2.2.0 | 2.4.0
• arel | ~> 3.0.0 | 9.0.0
• rails | 5.0.7.2 | 5.2.2.1+dfsg
• hamlit | ~> 2.8.8 | 2.9.2
• mail | ~> 2.2.5 | 2.7.1+dfsg1
• uber | ~> 0.0.15 | 0.1.0
• redis-store | ~> 1.2.0.pre | 1.3.0
• activesupport | <= 5.1.0, >= 4 | 5.2.2.1+dfsg
• public_suffix | >= 2.0.2, ~> 2.0 | 3.0.3+ds
• safe_yaml | ~> 0.9.0 | 1.0.4
• kubeclient | ~> 4.2.2 | 4.3.0
• kaminari-activerecord | = 1.0.0 | 1.0.1
• railties | <= 5.1.0, >= 4 | 5.2.2.1+dfsg
• minitest | ~> 4.2 | 5.11.3
• activejob | = 5.0.7.2 | 5.2.2.1+dfsg
• googleauth | ~> 0.5.1 | 0.8.0