Use cran version of pkgdown

Author: jimhester

.github/workflows/pkgdown.yaml

@@ -31,7 +31,7 @@ jobs:
         run: |
           install.packages("remotes")
           remotes::install_deps(dependencies = TRUE)
-          remotes::install_dev("pkgdown")
+          remotes::install_cran("pkgdown")
         shell: Rscript {0}
 
       - name: Install package