Merge pull request #217 from mamhoff/allow-rspec-rails-6

Allow rspec-rails 6

Author: mergify[bot]

solidus_dev_support.gemspec

@@ -40,7 +40,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'github_changelog_generator', '~> 1.15'
   spec.add_dependency 'puma', '>= 4.3', '< 7.0'
   spec.add_dependency 'rspec_junit_formatter'
-  spec.add_dependency 'rspec-rails', '>= 4.0.0.beta3', '< 6.0'
+  spec.add_dependency 'rspec-rails', '>= 5.0', '< 7.0'
   spec.add_dependency 'rubocop', '~> 1.0'
   spec.add_dependency 'rubocop-performance', '~> 1.5'
   spec.add_dependency 'rubocop-rails', '~> 2.3'