chore(deps): update dependency ruby to v4

[renovate]

This PR contains the following updates:

Package	Update	Change
ruby (source)	major	3.4.8 → 4.0.0

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Release Notes

ruby/ruby (ruby)

v4.0.0: 4.0.0

See also:

• Release 3.5.0-preview1 · ruby/ruby
• Release 4.0.0-preview2 · ruby/ruby
• Release 4.0.0-preview3 · ruby/ruby

What's Changed

• Bump RDoc to 7.0.1 by st0012 · Pull Request #​15628
• make rb_singleton_class ractor safe by luke-gruber · Pull Request #​15591
• Remove assertion in encoded_iseq_trace_instrument by luke-gruber · Pull Request #​15616
• Bug #​21793: function name conflict of "mutex_trylock" on Solaris - Ruby - Ruby Issue Tracking System
• [DOC] small improvements to ractor class docs by luke-gruber · Pull Request #​15584
• Check for NULL fields in TYPEDDATA memsize functions by luke-gruber · Pull Request #​15633
• Feature #​21785: Add signed and unsigned LEB128 support to pack / unpack - Ruby - Ruby Issue Tracking System
• Fix rbs test failure caused by minitest6 by soutaro · Pull Request #​15643
• Fix: Do not check open_timeout twice by shioimm · Pull Request #​15626
• Fix: Specifying 0 should cause an immediate timeout by shioimm · Pull Request #​15641
• Bug #​21794: O_CLOEXEC is not available on Solaris 10 - Ruby - Ruby Issue Tracking System
• Fiber scheduler: invoke #io_write hook on IO flush by noteflakes · Pull Request #​15609
• Update NEWS.md for Fiber Scheduler by noteflakes · Pull Request #​15629
• Small documentation adjustments for new/updated features by zverok · Pull Request #​15634
• Add clarifications about the Enumerator.size by zverok · Pull Request #​15615
• Bug #​21792: 4.0.0-preview3: Build fails with --with-ext= when ENABLE_SHARED=yes: ruby/digest.h not found for rubyspec CAPI extensions - Ruby - Ruby Issue Tracking System
• [DOC] Enhancements for globals.md by BurdetteLamar · Pull Request #​15545
• Small improvements to doc/language/ractor.md by luke-gruber · Pull Request #​15588
• More doc improvements to ractor.md by luke-gruber · Pull Request #​15676
• Bump RDoc to 7.0.2 by st0012 · Pull Request #​15691
• [DOC] Improve ractor class docs (grammar, code examples) by luke-gruber · Pull Request #​15686
• [DOC] Languages in Examples by BurdetteLamar · Pull Request #​15697
• Bundle RBS 3.10.0 by soutaro · Pull Request #​15701
• Describe base code layout rules by zverok · Pull Request #​15696
• [DOC] Enhance Fiber::Scheduler docs by zverok · Pull Request #​15708
• [DOC] Cross-links between Japanese and English pages by BurdetteLamar · Pull Request #​15705
• ZJIT: Don't mark control-flow opcodes as invalidating locals by tekknolagi · Pull Request #​15694
• [DOC] Add back Rust 1.85.0 requirement to NEWS.md by chancancode · Pull Request #​15728

Note: This list is automatically generated by tool/gen-github-release.rb. Because of this, some commits may be missing.

Full Changelog

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[github-actions]

Triggered from #98 by @​renovate[bot].

Checking if we can fast forward main (edf4360) to renovate/ruby-4.x (e92255c).

Target branch (main):

commit edf43609a3bec72d00b32d75886a298ffa192d21 (HEAD -> main, origin/main)
Author: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Date:   Tue Dec 23 11:18:16 2025 +0000

    build(deps): bump rake from 13.3.0 to 13.3.1
    
    Bumps [rake](https://github.com/ruby/rake) from 13.3.0 to 13.3.1.
    - [Release notes](https://github.com/ruby/rake/releases)
    - [Changelog](https://github.com/ruby/rake/blob/master/History.rdoc)
    - [Commits](https://github.com/ruby/rake/compare/v13.3.0...v13.3.1)
    
    ---
    updated-dependencies:
    - dependency-name: rake
      dependency-version: 13.3.1
      dependency-type: direct:production
      update-type: version-update:semver-patch
    ...
    
    Signed-off-by: dependabot[bot] <support@github.com>

Pull request (renovate/ruby-4.x):

commit e92255c99750932b30bf0e24bad400b9cfab6cf7 (pull_request/renovate/ruby-4.x)
Author: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Date:   Thu Dec 25 05:03:40 2025 +0000

    chore(deps): update dependency ruby to v4

It is possible to fast forward main (edf4360) to renovate/ruby-4.x (e92255c). If you have write access to the target repository, you can add a comment with /fast-forward to fast forward main to renovate/ruby-4.x.