Upgrade Puma to 5.x

Gemfile.lock

@@ -359,8 +359,8 @@ GEM
     multipart-post (2.1.1)
     mustache (1.1.1)
     mustermann (1.0.3)
-    nio4r (2.5.2)
-    nio4r (2.5.2-java)
+    nio4r (2.5.4)
+    nio4r (2.5.4-java)
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     nokogiri (1.10.10-java)
@@ -378,9 +378,9 @@ GEM
     pg (1.2.3-x86-mingw32)
     psych (3.1.0)
     public_suffix (4.0.6)
-    puma (4.3.1)
+    puma (5.0.4)
       nio4r (~> 2.0)
-    puma (4.3.1-java)
+    puma (5.0.4-java)
       nio4r (~> 2.0)
     que (0.14.3)
     qunit-selenium (0.0.4)

railties/lib/rails/generators/app_base.rb

@@ -200,7 +200,7 @@ module Rails
       def web_server_gemfile_entry # :doc:
         return [] if options[:skip_puma]
         comment = "Use Puma as the app server"
-        GemfileEntry.new("puma", "~> 4.1", comment)
+        GemfileEntry.new("puma", "~> 5.0", comment)
       end
 
       def include_all_railties? # :doc:

railties/test/generators/app_generator_test.rb

@@ -589,7 +589,7 @@ class AppGeneratorTest < Rails::Generators::TestCase
 
   def test_generator_defaults_to_puma_version
     run_generator [destination_root]
-    assert_gem "puma", "'~> 4.1'"
+    assert_gem "puma", "'~> 5.0'"
   end
 
   def test_generator_if_skip_puma_is_given