Log Message:
www/ruby-aws-sigv4: update to 1.4.0

1.4.0 (2021-09-02)

* Feature - add signing_algorithm option with sigv4 default.

1.3.0 (2021-09-01)

* Feature - AWS SDK for Ruby no longer supports Ruby runtime versions 1.9,
  2.0, 2.1, and 2.2.