+ Ruby 3.3 support

[olefriis]

I've basically mimicked #841.

• Copied lib/parser/ruby32.y to lib/parser/ruby33.y, editing the version number on the first line. Since Ruby 3.2 was released a couple of weeks ago, the grammars are probably identical for now (?).
• Other changes similar to + ruby32.y: branch parser #841.
• Added a changelog entry. As I understand the version number specs for this repo, adding Ruby 3.3 support means bumping a "minor" version. I have not bumped the version in lib/parser/version.rb, as I suppose this will be part of the actual release process. Also, since I do not know when the version will be released, I haven't added a timestamp in the changelog.

[iliabylich]

Thanks! I've left a few comments.

Also there are two missing pieces:

1. parse_helper.rb, ALL_VERSIONS constants should include 3.3
2. parse_helper.rb, parser_for_ruby_version method needs to handle 3.3

[olefriis]

Thanks for the extremely quick feedback, @iliabylich. I've applied the suggested changes, except the one about the parser_for_ruby_version needing to handle 3.3. That should already be there, right?

[iliabylich]

Thanks!

[nickborromeo]

👋 @iliabylich can I ask when this change is going to be scheduled to be released as a patch version for the gem? 🙇

[iliabylich]

I don't plan to release until Ruby 3.2.1 (i.e. with release of the next Ruby version) or in case of a bugfix (that would be parser 3.2.0.1).

Why do you need this change?

[nickborromeo]

We have a running branch every week to test Ruby and the sha that we are targeting is 9726736006b3f74635fd8af05814fe0908e2cf84 which contains this change for the versions

It looks like there are other gems like rubocop-ast and rubocop that rely on this, right now we are just trying to get a timeline of things; which you have already provided since you are planning to release when Ruby 3.2.1 comes out.