Add note to troubleshoot pgbouncer failing to connect to pg due to missing auth cidr address

See merge request gitlab-org/gitlab-ee!4831

Merge two spec files issues_settings_spec.rb into one

See merge request gitlab-org/gitlab-ee!5164

Merge two board destroy service spec

See merge request gitlab-org/gitlab-ee!5166

Move cross_project_issuable_information_filter_spec.rb to ee dir

See merge request gitlab-org/gitlab-ee!5167

Renaming of "xlog" to "wal" for PostgreSQL 10

See merge request gitlab-org/gitlab-ee!4669

Adds Vuex store for security reports

See merge request gitlab-org/gitlab-ee!5155

[ci skip]

* master: (171 commits)
  EE port of vuex-action-helper-correctly-fail
  Update CHANGELOG.md for 10.6.2
  Update CHANGELOG-EE.md for 10.6.2-ee
  Fix workhorse tests
  Gitlab-workhorse still needs RepoPath on Git HTTP
  Harmonize can-attach-file to match CE
  Add Gitlab::ExclusiveLease to ObjectStorage#use_file
  Fix promoting labels and milestones copy text
  QA: allow rspec files/options to be handled more consistently
  Replaces "Libre" => "Core"
  Be explicit about when yellow favicon is used
  Use a brand-new Repository when performing Geo sync to a temporary directory
  Remove EE-specific comments from CE
  Trigger wiki sync when enabled
  Fixes conflicts on 'lib/gitlab/ci/config.rb'
  Resolve conflict in spec/spec_helper.rb
  Resolve "Skip repository-changing events on Geo secondaries if the repository hasn't been backfilled yet"
  Make all workhorse gitaly calls opt-out, take 2
  Revert "Merge branch 'workhorse-gitaly-mandatory' into 'master'"
  Resolve application settings UI conflicts after ce-to-ee merge
  ...

They're both EE only:

* ee/spec/services/boards/destroy_service_spec.rb
* spec/services/boards/destroy_service_spec.rb

# Conflicts:
#	.flayignore
#	CHANGELOG.md
#	app/assets/javascripts/pages/milestones/shared/components/promote_milestone_modal.vue
#	app/controllers/projects/milestones_controller.rb
#	app/helpers/page_layout_helper.rb
#	app/models/ci/runner.rb
#	app/views/ci/variables/_variable_row.html.haml
#	app/views/import/github/new.html.haml
#	app/views/layouts/nav/sidebar/_project.html.haml
#	app/views/projects/new.html.haml
#	app/views/shared/_import_form.html.haml
#	doc/install/README.md
#	spec/features/groups/activity_spec.rb
#	spec/features/groups/issues_spec.rb
#	spec/features/groups/show_spec.rb
#	spec/javascripts/fixtures/projects.rb
#	spec/services/ci/retry_build_service_spec.rb

[ci skip]

Update README.md (settings -> pipelines is renamed to settings -> CI / CD )

See merge request gitlab-org/gitlab-ce!18078

We got both:

* ee/spec/features/projects/settings/issues_settings_spec.rb
* spec/features/projects/settings/issues_settings_spec.rb

But they're not the same! Also fix the descriptions

Fix link to "Getting started with GitLab and DigitalOcean" page.

See merge request gitlab-org/gitlab-ce!17944

Update events.md with time period limit documentation

Closes #35912

See merge request gitlab-org/gitlab-ce!17941

EE port of vuex-action-helper-correctly-fail

See merge request gitlab-org/gitlab-ee!5162

[ci skip]

[ci skip]

[ci skip]

Fix background pipeline stages migration

Closes #44135

See merge request gitlab-org/gitlab-ce!18076

Port of add-per-runner-job-timeout to EE

See merge request gitlab-org/gitlab-ee!4649

Add per runner job timeout

Closes #43426

See merge request gitlab-org/gitlab-ce!17221

Add Gitlab::ExclusiveLease to ObjectStorage#use_file

See merge request gitlab-org/gitlab-ee!5158

ObjectStorage#use_file should respect exclusive lease

Closes gitlab-com/infrastructure#3874

See merge request gitlab-org/gitlab-ce!18052