Require a version compatible with Turbo

Author: David Heinemeier Hansson

railties/lib/rails/generators/rails/app/templates/Gemfile.tt

@@ -50,7 +50,7 @@ group :development do
   gem "web-console", ">= 4.1.0"
 
   # Add speed badges [https://github.com/MiniProfiler/rack-mini-profiler]
-  # gem "rack-mini-profiler", "~> 2.0"
+  # gem "rack-mini-profiler", ">= 2.3.3"
 
 <%- end -%>
   # Speed up commands on slow machines / big apps [https://github.com/rails/spring]