Merge branch 'sh-fix-npm-package-finder-all-projects' into 'master'

Use `Namespace#all_projects` for NPM package finder

See merge request gitlab-org/gitlab!56415

app/finders/packages/npm/package_finder.rb

@@ -35,8 +35,7 @@ def packages_for_project
       end
       def packages_for_namespace
-        projects = ::Project.in_namespace(@namespace.self_and_descendants.select(:id))
-        ::Packages::Package.for_projects(projects.select(:id))
+        ::Packages::Package.for_projects(@namespace.all_projects)
       end
     end
   end

changelogs/unreleased/sh-fix-npm-package-finder-all-projects.yml

+---
+title: Use `Namespace#all_projects` for NPM package finder
+merge_request: 56415
+author:
+type: performance