Update dependency rspec-rails to v8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rspec-rails (changelog)	7.1.1 -> 8.0.0

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Release Notes

rspec/rspec-rails (rspec-rails)

v8.0.0

Compare Source

Enhancements:

• Add Rails 8 authentication generator support. (Jerome Dalbert, #​2811)
• Improve install generator comment for ActiveRecord::Migration.maintain_test_schema! (#​2832)
• Add support for served_by in system specs. (Sam Giffney, #​2841)

Breaking Changes:

• Minimum supported Rails version is 7.2.0

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[miq-bot]

Checked commit https://github.com/ManageIQ/miq_bot/commit/1818eee14fe807a1480feea362732a165e000828 with ruby 3.1.5, rubocop 1.56.3, haml-lint 0.62.0, and yamllint 0 files checked, 0 offenses detected Everything looks fine. :+1: