A change introduced in PR https://github.com/rubygems/rubygems/pull/7797
does not delete the binstub lock files after the binstub file is created.

This change was introduced in rubygems 3.5.15,
and this version causes Hydra builds to fail, in particular mastodon.

A resolution is delete these binstub lock files after the binstub file is created
to prevent lock files from ending up in the bin folders of the various derivations
which will cause the build to fail.

---
diff --git a/bundler/lib/bundler/rubygems_ext.rb b/bundler/lib/bundler/rubygems_ext.rb
index 503959bba7..603b30e277 100644
--- a/bundler/lib/bundler/rubygems_ext.rb
+++ b/bundler/lib/bundler/rubygems_ext.rb
@@ -47,6 +47,8 @@ def self.open_file_with_flock(path, &block)
         else
           File.open(path, flags, &block)
         end
+      ensure
+        FileUtils.rm_f(path) if File.exist?(path)
       end
     end
   end
diff --git a/lib/rubygems.rb b/lib/rubygems.rb
index 569041f3d7..bcc95ae85c 100644
--- a/lib/rubygems.rb
+++ b/lib/rubygems.rb
@@ -796,6 +796,8 @@ def self.open_file_with_flock(path, &block)
       else
         open_file(path, flags, &block)
       end
+    ensure
+      FileUtils.rm_f(path) if File.exist?(path)
     end
   end