Fix Quarto notebook rendering

[AritraDey-Dev]

Description

Right now, after rendering the quarto notebooks to HTML, some code blocks are executed but their output is not shown in the rendered quarto HTML.

e.g., see: https://pecanproject.github.io/pecan-documentation/develop/rendered-demo-notebooks/uncertainty.html#sensitivity-and-variance-decomposition-visualization
The plot should be visible in the rendered HTML, but it is missing.

This is fixed by updating the Quarto YAML config.

Motivation and Context

Review Time Estimate

• Immediately
• Within one week
• When possible

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My change requires a change to the documentation.
• My name is in the list of CITATION.cff
• I agree that PEcAn Project may distribute my contribution under any or all of
  • the same license as the existing code,
  • and/or the BSD 3-clause license.
• I have updated the CHANGELOG.md.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.