Use safelist(s), allowlist(s) where applicable

[JuanitoFatas]

This Pull Request updates:

• terminology in the codebase
• rake task changed to rake generate_allowlists

Safelist, allowlist is easier to understand and less offensive.

Original motivation, other community efforts examples:

• [ci skip] change all instances of blacklist and whitelist to denylist… rails/rails#33681
• deserialize_jsonapi not found on controller graphiti-api/graphiti#10
• Finish converting whitelist and blacklist references rails/rails#33718
• Use friendlier terminology in YAML.safe_load ruby/psych#378
• Use friendlier terminology in rubysocket.h ruby/ruby#2008
• Use friendlier terminology in _leaf_helpers.erb ruby/ruby#2009
• Use permitted in line_length.rb rubocop/rubocop#6464
• Update friendlier terminology in Gem::SafeYAML rubygems/rubygems#2463
• Update terminologies dtao/safe_yaml#93
• Introduce Request::ALLOWED_SCHEMES and deprecate existing constant rack/rack#1314
• Update terminology in http_status.rb rubocop/rubocop#6466
• Update terminology in rails/validation.rb rubocop/rubocop#6467
• Update terminology in BUILD_DETAIL.md rspec/rspec-core#2576
• Update terminology in BUILD_DETAIL.md rspec/rspec-expectations#1083
• Update terminology in BUILD_DETAIL.md rspec/rspec-mocks#1246
• Update terminology in BUILD_DETAIL.md rspec/rspec-support#356
• Use clearer terminologies pry/pry#1874
• Update terminology in test description from completion spec pry/pry#1875

[flavorjones]

Thank you for submitting this! Renaming classes was already on my roadmap (see #155 for how I was planning to approach it along with some backwards-compatibility concerns) so I'm totally aligned on the intention.

Give me a few days to find some time to understand the changes made here and look at the failing tests. I'm a little under water at the moment.

[flavorjones]

Apologies for the long response time here -- the last few weeks have been hectic for me. This is still on my TODO list and I intend to get to it as soon as I can.

[sorryeh]

Just a comment, the rest is 👍 :)

[sorryeh]

why allowlist here instead of safelist?

Introducing a second term for the same concept does not seem right here.

[sorryeh]

👍

[flavorjones]

Just an update: I'm struggling to find time to work on OSS; this is still something I'm very keen to do, so thanks for your patience.

[flavorjones]

Hi! I apologize for this going so long without review. I'm dedicating some time this week to my open source projects and will spend some time with this PR. Thank you again for sending such a thoughtful PR.

[JuanitoFatas]

Closing in favor of #164.

[flavorjones]

v2.3.0 has been released.

[coreyward]

Offensive? “Blacklist” is not race related, either in origin or context. “Whitelist“ is it’s opposite. https://www.reddit.com/r/AskHistorians/comments/866ynp/what_are_the_origins_of_the_words_blacklist_and/