Run CocoaPods install v3.1.0

Changelog
1

What’s changed

This release is a refactor only with no changes to the Step’s inputs, outputs, or behavior.

  • Migrated all go-utils/go-steputils usage from v1 to v2 APIs, with dependencies (environment, logger, file manager, path checker/modifier, Ruby command factory) injected explicitly instead of relying on package-level v1 functions.
  • Ported Gemfile.lock version-parsing logic locally (gemlockfile.go), since the v2 utils library has no direct equivalent yet.
  • Bumped go-utils/v2 to alpha.36 to pick up FilterPaths/SortPathsByComponents/fileutil.
  • go-xcode stays on v1 for now (tracked separately); a small adapter bridges its v1-typed path filters to the v2 filter signature.

Changelog: 3.0.0…3.1.0