ext: ruby 3.3 support

[flavorjones]

What problem is this PR intended to solve?

Add precompiled native support for Ruby 3.3.

Note that this is still experimental! It is precompiling using a rake-compiler-dock prerelease that uses 3.3.0-preview3.

Have you included adequate test coverage?

Testing against 3.3.0-preview3 or head

Does this change affect the behavior of either the C or the Java implementations?

N/A

[flavorjones]

I've updated this branch to use rake-compiler-dock v1.4.0.rc1

[flavorjones]

Please note this won't get released until one of two things happens:

• the Ruby Core team freezes the ABI (binary interface) for Ruby 3.3 (see https://bugs.ruby-lang.org/issues/19980)
• Ruby 3.3.0 final release arrives

[agrobbin]

@flavorjones looks like with the release of 3.3 RC1 this morning, the ABI was frozen!

After the release of RC1, we will avoid introducing ABI incompatibilities wherever possible. If we need to do, we’ll announce it in the release note.

With that, the corresponding issue you linked above has been closed.

[flavorjones]

@agrobbin Yup, I saw that, thanks! I'll be working on cutting a final release of rake-compiler-dock this week and will likely ship an RC of nokogiri supporting ruby 3.3 shortly thereafter.

[agrobbin]

Thanks @flavorjones!!