Log Message:
www/ruby-http-form_data: update to 2.3.0

Update ruby-http-form_data to 2.3.0.

pkgsrc change: add "USE_LANGAUGES=	# none".

## 2.3.0 (2020-03-08)

* [#29](https://github.com/httprb/form_data/pull/29)
  Enhance HTTP::FormData::Urlencoded with per-instance encoder.
  [@summera][]

## 2.2.0 (2020-01-09)

* [#28](https://github.com/httprb/form_data/pull/28)
  Ruby 2.7 compatibility.
  [@janko][]