feat(skills): add wellarchitected.github.com content to cicd-github-actions-ops

[aRustyDev]

Summary

Add references and patterns from https://wellarchitected.github.com to the cicd-github-actions-ops skill.

Rationale

The GitHub Well-Architected framework provides operational best practices for GitHub Actions that would enhance the review and debugging guidance in this skill.

Scope

• Add wellarchitected.github.com as a reference
• Incorporate relevant operational patterns
• Add framework-based checklists for workflow review

Related Skills

This is part of a broader effort to add wellarchitected.github.com content to:

• cicd-github-actions-dev
• cicd-github-actions-ops (this issue)
• github-actions-dev
• github-app-dev
• iac-terraform-modules-eng
• iac-terraform-orchestration-ops