Add period to end of comment sentences in env templates for consistency (rails#51677)

Add periods to comments in development.rb.tt and test.rb.tt for consistency.
[ci skip]

Co-authored-by: Carlos Antonio da Silva <[email protected]>

Author: SeesawEffectt

railties/lib/rails/generators/rails/app/templates/config/environments/development.rb.tt

@@ -14,7 +14,7 @@ Rails.application.configure do
   # Show full error reports.
   config.consider_all_requests_local = true
 
-  # Enable server timing
+  # Enable server timing.
   config.server_timing = true
 
   # Enable/disable caching. By default caching is disabled.
@@ -85,7 +85,7 @@ Rails.application.configure do
   # config.action_cable.disable_request_forgery_protection = true
 
   <%- end -%>
-  # Raise error when a before_action's only/except options reference missing actions
+  # Raise error when a before_action's only/except options reference missing actions.
   config.action_controller.raise_on_missing_callback_actions = true
   <%- unless skip_rubocop? -%>
 

railties/lib/rails/generators/rails/app/templates/config/environments/test.rb.tt

@@ -64,6 +64,6 @@ Rails.application.configure do
   # Annotate rendered view with file names.
   # config.action_view.annotate_rendered_view_with_filenames = true
 
-  # Raise error when a before_action's only/except options reference missing actions
+  # Raise error when a before_action's only/except options reference missing actions.
   config.action_controller.raise_on_missing_callback_actions = true
 end