Update dependency rubocop-rspec to v2.28.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rubocop-rspec (changelog)	'2.27.1' -> '2.28.0'

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Release Notes

rubocop/rubocop-rspec (rubocop-rspec)

### [`v2.28.0`](https://togithub.com/rubocop/rubocop-rspec/blob/HEAD/CHANGELOG.md#2280-2024-03-30) [Compare Source](https://togithub.com/rubocop/rubocop-rspec/compare/v2.27.1...v2.28.0) - Extract RSpec Rails cops to a separate repository, [`rubocop-rspec_rails`](https://togithub.com/rubocop/rubocop-rspec_rails). The `rubocop-rspec_rails` repository is a dependency of `rubocop-rspec` and the cops related to rspec-rails are aliased (`RSpec/Rails/Foo` == `RSpecRails/Foo`) until v3.0 is released, so the change will be invisible to users until then. (\[[@​ydah](https://togithub.com/ydah)])

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Configuration

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[yegor256]

@rultor please, try to merge, since 1 checks have passed

[rultor]

@rultor please, try to merge, since 1 checks have passed

@yegor256 OK, I'll try to merge now. You can check the progress of the merge here

[rultor]

@rultor please, try to merge, since 1 checks have passed

@yegor256 Done! FYI, the full log is here (took me 11min)