Portable Ruby 4.0.5

[p-linnane]

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Security release to fix https://www.ruby-lang.org/en/news/2026/05/20/getaddrinfo-cve-2026-46727/

[Copilot]

Pull request overview

Updates Homebrew’s vendored Portable Ruby to 4.0.5 to pick up the upstream security fix (CVE-2026-46727 in getaddrinfo), ensuring Homebrew’s runtime Ruby is patched across supported platforms.

Changes:

• Bump Portable Ruby version from 4.0.4 to 4.0.5.
• Update platform-specific Portable Ruby SHA256 values for Linux (x86_64, arm64) and macOS (x86_64, arm64).
• Align Library/Homebrew Ruby version markers (.ruby-version, Gemfile.lock) to 4.0.5.

Reviewed changes

Copilot reviewed 1 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Library/Homebrew/vendor/portable-ruby-version	Bumps vendored portable Ruby version to 4.0.5.
Library/Homebrew/vendor/portable-ruby-x86_64-linux	Updates SHA for the x86_64 Linux portable Ruby artifact.
Library/Homebrew/vendor/portable-ruby-arm64-linux	Updates SHA for the arm64 Linux portable Ruby artifact.
Library/Homebrew/vendor/portable-ruby-x86_64-darwin	Updates SHA for the x86_64 macOS portable Ruby artifact.
Library/Homebrew/vendor/portable-ruby-arm64-darwin	Updates SHA for the arm64 macOS portable Ruby artifact.
Library/Homebrew/Gemfile.lock	Updates locked Ruby version to 4.0.5.
Library/Homebrew/.ruby-version	Updates developer Ruby version to 4.0.5.

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