Add regression test to quarto vignette

.github/workflows/R-CMD-check.yaml

@@ -55,10 +55,12 @@ jobs:
 
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
-          extra-packages: any::rcmdcheck
+          extra-packages: any::rcmdcheck, quarto=quarto-dev/quarto-r, local::.
           needs: check
 
       - uses: r-lib/actions/check-r-package@v2
+        env:
+          R_QUARTO_QUIET: FALSE
         with:
           upload-snapshots: true
           build_args: 'c("--no-manual","--compact-vignettes=gs+qpdf")'

vignettes/quarto.qmd

@@ -1,14 +1,14 @@
 ---
 title: quarto vignettes
-description: > 
+description: >
   Learn how quarto vignettes work with pkgdown, including currently supported
   features and known limitations.
 vignette: >
   %\VignetteIndexEntry{quarto vignettes}
   %\VignetteEngine{quarto::html}
   %\VignetteEncoding{UTF-8}
 knitr:
-  opts_chunk: 
+  opts_chunk:
     collapse: true
     comment: '#>'
 ---
@@ -26,7 +26,7 @@ project:
 
 ### GitHub Actions
 
-The `setup-r-dependencies` action will [automatically](https://github.com/r-lib/actions/tree/v2-branch/setup-r-dependencies#usage) install Quarto in your GitHub Actions if a .qmd file is present in your repository (see the `install-quarto` parameter for more details). 
+The `setup-r-dependencies` action will [automatically](https://github.com/r-lib/actions/tree/v2-branch/setup-r-dependencies#usage) install Quarto in your GitHub Actions if a .qmd file is present in your repository (see the `install-quarto` parameter for more details).
 
 
 ## Limitations
@@ -41,7 +41,7 @@ The `setup-r-dependencies` action will [automatically](https://github.com/r-lib/
 
 ## Supported features
 
-The following sections demonstrate a bunch of useful quarto features so that we can make sure that they work. 
+The following sections demonstrate a bunch of useful quarto features so that we can make sure that they work.
 
 ### Inline formatting
 
@@ -76,7 +76,7 @@ $$
 \frac{\partial \mathrm C}{ \partial \mathrm t } + \frac{1}{2}\sigma^{2} \mathrm S^{2}
 \frac{\partial^{2} \mathrm C}{\partial \mathrm C^2}
   + \mathrm r \mathrm S \frac{\partial \mathrm C}{\partial \mathrm S}\ =
-  \mathrm r \mathrm C 
+  \mathrm r \mathrm C
 $$ {#eq-black-scholes}
 
 
@@ -97,3 +97,13 @@ Black-Scholes (@eq-black-scholes) is a mathematical model that seeks to explain
 * [x] Cross-references
 * [x] Footnotes
 * [x] Callouts
+
+## Regression tests
+
+This is a regression test for quarto build errors on GHA. See https://github.com/r-lib/pkgdown/issues/2830 and related issues.
+
+```{r}
+library(pkgdown)
+packageVersion("pkgdown")
+packageVersion("quarto")
+```