ActionView::Template fix computation of strict locals

Fix: rails#49782

There was a bug in how we computed the list of required keys which
wasn't caught by the test.

Author: byroot

actionview/lib/action_view/template.rb

@@ -501,7 +501,7 @@ def compile(mod)
         end
 
         unless parameters.any? { |type, _| type == :keyrest }
-          parameters.map!(&:first)
+          parameters.map!(&:last)
           parameters.sort!
           @strict_local_keys = parameters.freeze
         end

actionview/test/template/template_test.rb

@@ -215,6 +215,11 @@ def test_rails_injected_locals_can_be_specified_as_kwargs
     assert_equal "1-2", render(message: "Hello", message_counter: 1, message_iteration: 2, implicit_locals: %i[message_counter message_iteration])
   end
 
+  def test_rails_injected_locals_can_be_specified_as_required_argument
+    @template = new_template("<%# locals: (message: 'Hello', message_iteration:) -%>\n<%= message %>-<%= message_iteration %>")
+    assert_equal "Hello-2", render(message: "Hello", message_counter: 1, message_iteration: 2, implicit_locals: %i[message_counter message_iteration])
+  end
+
   # TODO: This is currently handled inside ERB. The case of explicitly
   # lying about encodings via the normal Rails API should be handled
   # inside Rails.