Log Message:
devel/ruby-mixlib-authentication: update to 3.0.7

Update ruby-mixlib-authentication package to 3.0.7.

3.0.7 (2020-08-21)

* Optimize our requires #53 (tas50)

3.0.6 (2019-12-30)

* Test on Ruby 2.7 + random testing improvements #51 (tas50)
* Substitute require for require_relative #52 (tas50)