Dont match mention in url query string (#25656)

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

spec/models/account_spec.rb

@@ -700,7 +700,7 @@ RSpec.describe Account do
       expect(subject.match('Check this out https://medium.com/@alice/some-article#.abcdef123')).to be_nil
     end
 
-    xit 'does not match URL query string' do
+    it 'does not match URL query string' do
       expect(subject.match('https://example.com/?x=@alice')).to be_nil
     end
   end