Fix Issue board when using Ruby 2.4

Closes #35769

See merge request !13220

Make the 'issuables list meta-data' shared example less dangerous

See merge request !13236

Ensure all project factories use `:repository` trait or `:empty_project`

See merge request !13238

Add filtered search to group issue dashboard

Closes #33575

See merge request !13167

Remove jQuery cropper plugin from vendors directory

See merge request !13239

Add kube_namespace and standardize common variables for additional metrics queries

See merge request !13169

Fix encoding error for WebHook logging

Closes #35815

See merge request !13230

Make Markdown autocomplete dropdowns style consistent

See merge request !13127

Derive project path from import URL

Closes #27341

See merge request !13131

Docs: update articles list

Closes #35800

See merge request !13229

Fixes the search losing focus

Closes #35515

See merge request !13221

This shared example would take an object's database ID and create a
number of objects based on it. If for some reason the ID were a high
number, like 20, this would create `20 + 21 + 22` objects.

Not only was this dangerous from a performance perspective, it was
entirely unnecessary, as the behavior it was testing is already
well-tested in the unit test for the underlying object. For a controller
test, which is what's including this shared example, all we need to do
is verify that the assigned object contains the correct `id => object`
Hash, which is what we now test for.

also, trigger build

Resolve "Remove `events` from `notification_settings`"

Closes #33620

See merge request !13152

Bump rubocop to 0.49.1 and rubocop-rspec to 1.15.1

Closes #34869

See merge request !12741

In Ruby 2.4, Hash#compact exists and returns a Hash, while in
Ruby 2.3,
Hash#compact is implemented by Rails and returns a new
`ActionController::Parameters` instance in this case.

Also, `ActionController::Parameters#compact` is deprecated in
Rails 5.1 so we're using `reject { |_, value| value.nil? }` instead.
Signed-off-by: Rémy Coutable <remy@rymai.me>

Add code review guidelines related to Build [CI skip].

See merge request !13223

Fix "API specs and linting failing on master"

Closes #35825

See merge request !13227

Make time span dropdown style on cycle analytics page consistent

See merge request !13183

Always fetch branches before finding the merge base, otherwise we could find an outdated merge base

See merge request !13226

Fix bug in blob test

See merge request !13224

[CE] Added Legacy Storage format

See merge request !13149

Make sure we didn't commit conflicts

Closes #35627

See merge request !13141

Signed-off-by: Rémy Coutable <remy@rymai.me>