chore: Sync gemfiles with updated Appraisals configuration

[toshimaru]

Context

The generated gemfiles/*.gemfile files had drifted out of sync with the Appraisals file. This PR cleans up the Appraisals configuration and regenerates all gemfiles.

Changes

• Update Appraisals to add/remove gems as needed
• Regenerate gemfiles/*.gemfile with bundle exec appraisal

[Copilot]

Pull request overview

This PR synchronizes the generated gemfiles with an updated Appraisals configuration, removing unnecessary development/testing dependencies from the appraisal blocks and ensuring consistency across different Rails versions.

• Cleaned up the Appraisals file by removing global development dependencies (appraisal, aruba, cucumber, rake, rspec-rails, standard) that shouldn't be in version-specific blocks
• Removed deprecated dependencies (spring-watcher-listen) and version-specific gems that are no longer needed
• Added version-appropriate gems for newer Rails versions (e.g., solid_cache for Rails 8.0)

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
Appraisals	Updated configuration for all Rails versions (6.1, 7.0, 7.1, 7.2, 8.0), removing unnecessary dev/test gems and adding version-specific dependencies
gemfiles/rails6.1.gemfile	Regenerated to match updated Appraisals configuration, removing global dev dependencies
gemfiles/rails7.0.gemfile	Regenerated to match updated Appraisals configuration, removing unnecessary gems like drb, listen, spring, and bigdecimal
gemfiles/rails7.1.gemfile	Regenerated to match updated Appraisals configuration, adding error_highlight and rubocop-rails-omakase
gemfiles/rails7.2.gemfile	Regenerated to match updated Appraisals configuration, removing listen and spring dependencies, adding brakeman and rubocop
gemfiles/rails8.0.gemfile	Regenerated to match updated Appraisals configuration, adding Rails 8-specific gems (bcrypt, solid_cache, thruster)

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[Copilot]

The bcrypt gem is specified without a version constraint in the Appraisals file, but the removed line shows it previously had a constraint of "~> 3.1.7". Consider whether a version constraint should be maintained for bcrypt to ensure compatibility and avoid unexpected breaking changes in the future.