Enable "new_release_page" feature flag by default

This commit updates the "new_release_page" feature flag to be enabled by
default, effectively releasing the "New Release" page.

app/controllers/projects/releases_controller.rb

@@ -29,7 +29,7 @@ class Projects::ReleasesController < Projects::ApplicationController
   end
 
   def new
-    unless Feature.enabled?(:new_release_page, project)
+    unless Feature.enabled?(:new_release_page, project, default_enabled: true)
       redirect_to(new_project_tag_path(@project))
     end
   end

app/helpers/releases_helper.rb

@@ -19,7 +19,7 @@ module ReleasesHelper
       documentation_path: help_page
     }.tap do |data|
       if can?(current_user, :create_release, @project)
-        data[:new_release_path] = if Feature.enabled?(:new_release_page, @project)
+        data[:new_release_path] = if Feature.enabled?(:new_release_page, @project, default_enabled: true)
                                     new_project_release_path(@project)
                                   else
                                     new_project_tag_path(@project)

changelogs/unreleased/nfriend-enable-new_release_page-feature-flag.yml

+---
+title: Add "New Release" page to allow creation of releases through the interface
+merge_request: 38913
+author:
+type: added