Log Message:
www/ruby-unicorn: update to 5.5.5

Update ruby-unicorn to 5.5.5.

5.5.5 (2020-04-27)

This release fixes a bug for users of multiple listeners setups
where a busy listen socket could starve other listeners.

Thanks to Stan Hu for reporting and testing.

No need to upgrade if you're using a single listen socket.

5.5.4 (2020-03-24)

One change to improve RFC 7230 conformance in the HTTP parser: