Refactor.notification recipient builders

See merge request !13197

Bump rspec to 3.6.0

See merge request !13293

Ensure `JIRA::Resource::Issue` responds to `resolution` before calling it

See merge request !13240

Remove monkey-patched Array.prototype.first() and last() methods

See merge request !13213

Moved changed files into a dropdown

Closes #29778

See merge request !13128

Don't bother going through an entire Banzai pipeline for empty text

See merge request !13300

This bails out of `cacheless_render` immediately unless the provided
text is present, since there's no point.

This is a slight improvement in our test performance. Across the
creation of 1,000 `Namespace` records, which caches the `description`
field and which is blank by default in its factory, this saves about
four seconds, which... sure. Why not.

Resolve "Specific Async Script Loading by using a Page Variable"

Closes #34904

See merge request !12759

Avoid plucking Todo ids in TodoService - take 2

See merge request !11415

Use mixin for new dropdown style

See merge request !13274

implement #inspect for all Referables

See merge request !13285

fix #3686 make tarball download url to end with extension

Closes #3686

See merge request !13178

Don't include EmailHelpers manually, pick with rspec

See merge request !13257

fix #35133 strip new lines from ssh keys

Closes #35133

See merge request !13234

Re-organise "issues" indexes for faster ordering

See merge request !13278

since 99% of the time it's `target.project` anyways.

since it's only called once now in make_recipient

its functionality is swept into the project permission check
in NotificationRecipient#has_access? now