[FEA]: CI should perform the documentation build

[dagardner-nv]

Is this a new feature, an improvement, or a change to existing functionality?

New Feature

How would you describe the priority of this feature request

Medium

Please provide a clear description of problem this feature solves

CI should run on the main branch, allowing documentation to be built as part of the release process.

Describe your ideal solution

Enable .github/workflows/pr.yaml to run on the main branch.

Additional context

No response

Code of Conduct

• I agree to follow this project's Code of Conduct
• I have searched the open feature requests and have found no duplicates for this feature request