Simplify excluded Rails versions

rails_twirp.gemspec

@@ -13,10 +13,10 @@ Gem::Specification.new do |spec|
 
   spec.files = `git ls-files`.split("\n")
 
-  # Rails has shipped an incompatible change in ActiveView, that was reverted in later versions.
+  # Rails has shipped an incompatible change in ActiveView, that was reverted in later versions
+  # but at this time has not been released as a 7.x version
   # @see https://github.com/rails/rails/pull/51023
-  excluded_versions = ["7.1.0", "7.1.1", "7.1.2", "7.1.3"].map { |v| "!= #{v}" }
-  spec.add_runtime_dependency "rails", ">= 6.1.3", *excluded_versions
+  spec.add_runtime_dependency "rails", ">= 6.1.3", " < 7.1"
   spec.add_runtime_dependency "twirp", ">= 1.9", "< 1.11"
   spec.required_ruby_version = ">= 3"
 end