[aw] No sha added to "ruby/setup-ruby@" in compiled workflow

[ivancea]

After upgrading gh-aw to v0.82.13, a workflow got compiled to:

      - name: Setup Ruby
        uses: ruby/setup-ruby@ # v1.319.0
        with:
          ruby-version: '3.3'

With an invalid hash

[pelikhan]

@copilot add runtime guard in compiler to detect these bugs.