chore: Upgrade CocoaPods to 1.16.2 and Ruby to 3.4.9

[mrousavy]

Summary

• upgrades the iOS bundle to CocoaPods 1.16.2, xcodeproj 1.27.0, concurrent-ruby 1.3.6, and Bundler 4.0.12
• moves iOS GitHub Actions Ruby pins from 2.7.2 to 3.4.9
• raises the example app Gemfile Ruby requirement to 3.4.9
• adds nkf explicitly because CocoaPods/xcodeproj still reaches CFPropertyList code that requires kconv under Ruby 3.4
• refreshes Podfile.lock with CocoaPods 1.16.2 against the current branch dependency graph

Notes

• CFPropertyList resolves to 3.0.8 on Ruby 3.4 because 3.0.9 declares required_ruby_version < 3.2; xcodeproj still constrains it below 4.0.
• Ruby 4.0.5 is the newest upstream Ruby release, but GitHub macOS 26 defaults to Ruby 3.4.9 and CocoaPods is not yet cleanly validated on Ruby 4 in this repo. Keep Ruby 4 as a follow-up once CocoaPods/xcodeproj move their dependency graph forward.
• Existing pod deployment-target warnings remain unchanged; they are transitive pod metadata, not introduced by this upgrade.

Source

• GitHub macOS 26 runner image lists Ruby 3.4.9, Bundler 4.0.12, and CocoaPods 1.16.2: https://github.com/actions/runner-images/blob/main/images/macos/macos-26-Readme.md

Validation

• bun install --frozen-lockfile
• PATH=/opt/homebrew/opt/ruby@3.4/bin:$PATH bundle _4.0.12_ install
• PATH=/opt/homebrew/opt/ruby@3.4/bin:$PATH bundle _4.0.12_ check
• PATH=/Users/mrousavy/.nvm/versions/node/v20.19.4/bin:/opt/homebrew/opt/ruby@3.4/bin:$PATH bundle _4.0.12_ exec pod install
• PATH=/Users/mrousavy/.nvm/versions/node/v20.19.4/bin:/opt/homebrew/opt/ruby@3.4/bin:$PATH xcodebuild CC=clang CPLUSPLUS=clang++ LD=clang LDPLUSPLUS=clang++ -derivedDataPath build -UseModernBuildSystem=YES -workspace SimpleCamera.xcworkspace -scheme SimpleCamera -sdk iphonesimulator -configuration Release -destination 'generic/platform=iOS Simulator' -showBuildTimingSummary build CODE_SIGNING_ALLOWED=NO
• ruby -e 'require "yaml"; ARGV.each { |f| YAML.load_file(f); puts "#{f}: ok" }' .github/workflows/build-ios-release.yml .github/workflows/harness-aws-device.yml
• git diff --check

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
react-native-vision-camera-docs	Ready	Preview, Comment	May 27, 2026 8:47pm

[mrousavy]

Superseded by #3959.