Prepare v4.7.0

[fbuys]

Check list:

• Add an entry to the changelog
• Squash all commits into a single one
• Describe your PR, link issues, etc.

This PR closes #404.

We updated the changelog and rubycritic/version in preparation for the v4.70 release.

[nunosilva800]

Welcome @fbuys and 🚀

[fbuys]

@nunosilva800 could you approve the workflow please?

[fbuys]

@nunosilva800 could you kindly tell me if there is something I did wrong to cause all the failures?

[nunosilva800]

I'm not entirely sure what could be wrong.
For ruby 2.4, error is:

ArgumentError: wrong number of arguments (given 4, expected 1)
/home/runner/work/rubycritic/rubycritic/vendor/bundle/ruby/2.4.0/gems/psych-4.0.3/lib/psych.rb:323:in `safe_load'
/opt/hostedtoolcache/Ruby/2.4.10/x64/lib/ruby/2.4.0/rubygems/safe_yaml.rb:31:in `safe_load'

But it was successful yesterday: https://github.com/whitesmith/rubycritic/runs/6308456694?check_suite_focus=true 🤔

To be honest... ruby versions up to 2.6 including, are no longer under the official maintenance plan. Perhaps we should remove these versions from the test runs.

@etagwerker wdyt?

[etagwerker]

I think we can remove ruby-2.4.x from the test suite runs. I tried to run the test suite locally w/ 2.4.10 and I found this issue:

➜  rubycritic git:(main) ✗ bundle
Fetching gem metadata from https://rubygems.org/
Fetching gem metadata from https://rubygems.org/.......
simplecov-0.21.2 requires ruby version >= 2.5.0, which is incompatible with the current version, ruby 2.4.10p364

Locally running the test suite with 2.5.x worked for me, so I'm assuming GitHub Actions is currently borked due to some random thing (?)

I'm gonna go ahead and merge this PR so that we can release 4.7.0.

I've submitted #406 so we don't lose track of this. 😄