Draft: fix failing pipeline

Summary

The pipeline was failing due to Bundler version compatibility issues:

• Ruby 2.7 job failed because Bundler 4.0.1 requires Ruby >= 3.2.0
• Ruby 3.2+ jobs failed because the --path flag was deprecated and removed in Bundler 4.x

Changes

• Added conditional Bundler installation logic: Installs Bundler 2.4.22 for Ruby 2.7 (last compatible version) and latest Bundler for Ruby >= 3.0
• Replaced deprecated --path flag: Changed from bundle install --path vendor/ruby to the modern approach using bundle config set --local path 'vendor/ruby' followed by bundle install
• Updated .gitlab-ci.yml: Modified the before_script section to use version-appropriate Bundler installation and modern bundle configuration syntax

Verification

✅ CI Linter: Configuration validated successfully with no errors or warnings
✅ Syntax Verification: Conditional logic tested and working correctly
✅ Bundle Config Command: Modern syntax verified and functional

All jobs in the test matrix (Ruby 2.7, 3.0, 3.1, 3.2, 3.3, 3.4) are expected to pass with these changes.

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Fixes failing pipeline on !14

Session 1398346