Update dependency rubocop-rspec to v2.28.0

[renovate]

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

Compare Source

• Extract RSpec Rails cops to a separate repository, 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])

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[yegor256]

@rultor please, try to merge, since 5 checks have passed

[rultor]

@rultor please, try to merge, since 5 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 5 checks have passed

@yegor256 Done! FYI, the full log is here (took me 7min)