Add auto_release.yml to sync.yml

Author: Daniel Carabas

.sync.yml

@@ -45,6 +45,8 @@ spec/spec_helper.rb:
   unmanaged: false
 .github/workflows/pr_test.yml:
   unmanaged: false
+.github/workflows/auto_release.yml:
+  unmanaged: false
 Rakefile:
   extras:
     "FastGettext.default_text_domain = 'default-text-domain'"