GetNpmBinPathSetup overrides the Ruby version selected by ruby/setup-ruby #57950

Problem

With this runtime configuration:

runtimes:
  ruby:
    version: default

ruby/setup-ruby correctly selects Ruby 3.4.8 from .ruby-version. Inside AWF, Ruby 3.2.11 is used instead.

GetNpmBinPathSetup() prepends every cached bin directory:

export PATH="$(find "$RUNNER_TOOL_CACHE" -maxdepth 5 -type d -name bin | tr '\n' ':')$PATH"

This overrides the ordering established by ruby/setup-ruby when ubuntu-latest contains multiple cached Ruby versions.

Environment

• ubuntu-latest
• gh-aw compiler: 77dcd6b78d969b13feb193f0dc40db40eb8fe7a2
• AWF: 0.28.9
• Engine: Pi 0.84.1
• Expected Ruby: 3.4.8
• Actual Ruby inside AWF: 3.2.11

Expected

The Ruby selected by ruby/setup-ruby remains first on PATH inside AWF.

This appears to remain unresolved after #32044: the linked firewall fix covered the fallback without AWF_HOST_PATH, while GetNpmBinPathSetup() still reorders the normal AWF path.