Update dependency rspec-rails to v7

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rspec-rails (changelog)	'6.1.5' -> '7.0.0'

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Release Notes

rspec/rspec-rails (rspec-rails)

v7.0.0

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Full Changelog

Enhancements:

• Change default driver for system specs on Rails 7.2 to match its default.
  (Steve Polito, #​2746)
• Verify ActiveJob arguments by comparing to the method signature. (Oli Peate, #​2745)
• Add suggestion to rails_helper.rb to skip when not in test most. (Glauco Custódio, #​2751)
• Add at_priority qualifier to have_enqueued_job set of matchers. (mbajur, #​2759)
• Add spec directories to rails stats on Rails main / 8.0.0. (Petrik de Heus, #​2781)

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[yegor256]

@rultor please, try to merge, since 11 checks have passed

[rultor]

@rultor please, try to merge, since 11 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 11 checks have passed

@yegor256 Done! FYI, the full log is here (took me 23min)