Add no build vignette when quarto is not available

Author: cderv

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

@@ -76,4 +76,4 @@ jobs:
       - uses: r-lib/actions/check-r-package@v2
         with:
           upload-snapshots: true
-          build_args: 'c("--no-manual","--compact-vignettes=gs+qpdf")'
+          build_args: ${{ format('c("--no-manual","--compact-vignettes=gs+qpdf"{0})', matrix.config.quarto == false && ',"--no-build-vignettes"' || '') }}