Fix WrongScopeError being thrown on Rails master:

- ### Problem

  Rails made a change in rails/rails@d4367eb
  and TestFixtures don't make use of `method_name` anymore, but simply
  `name`.

  `name` on RSpec raises a `WrongScopeError` when called within an
  example.

  This patch overrides `name` to return the example name instead.

lib/rspec/rails/fixture_support.rb

@@ -50,6 +50,12 @@ def self.proxy_method_warning_if_called_in_before_context_scope(method_name)
             end
           end
 
+          if ::Rails.version.to_f >= 6.1
+            def name
+              @example
+            end
+          end
+
           fixtures RSpec.configuration.global_fixtures if RSpec.configuration.global_fixtures
         end
       end

spec/rspec/rails/fixture_support_spec.rb

@@ -13,5 +13,27 @@ module RSpec::Rails
         expect(group).to respond_to(:fixture_path=)
       end
     end
+
+    it "doesn't raise a WrongScopeError" do
+      skip if Rails.version.to_f < 6.1
+
+      group = RSpec::Core::ExampleGroup.describe do
+        include FixtureSupport
+      end
+
+      expect { group.new.name }.to_not raise_error
+    end
+
+    it "setup_fixture successfuly" do
+      skip if Rails.version.to_f < 6.1
+
+      group = RSpec::Core::ExampleGroup.describe do
+        include FixtureSupport
+
+        self.use_transactional_tests = false
+      end
+
+      expect { group.new.setup_fixtures }.to_not raise_error
+    end
   end
 end