[rubygems/rubygems] Fix daily Bundler CI
Daily Bundler CI against ruby-head is failing because ruby-head now uses bigdecimal 3.1.5, so that gets locked by this spec.
This change should make the test stable until bigdecimal 99.1.5 is bundled with Ruby :)
https://github.com/rubygems/rubygems/commit/830326041f
[rubygems/rubygems] Fix daily Bundler CI
Daily Bundler CI against ruby-head is failing because ruby-head now
uses bigdecimal 3.1.5, so that gets locked by this spec.
This change should make the test stable until bigdecimal 99.1.5 is
bundled with Ruby :)
https://github.com/rubygems/rubygems/commit/830326041f