Update R-CMD-check.yaml

Author: ConnorB

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

@@ -44,6 +44,10 @@ jobs:
           extra-packages: any::rcmdcheck
           needs: check
 
+      - name: Install package for Quarto vignette rendering
+        if: runner.os == 'Windows'
+        run: R CMD INSTALL --no-multiarch --with-keep.source .
+
       - uses: r-lib/actions/check-r-package@v2
         with:
           upload-snapshots: true