Upgrade package dependencies

Author: remlapmot

.github/workflows/pkgdown.yaml

@@ -36,6 +36,7 @@ jobs:
         with:
           extra-packages: any::pkgdown, local::.
           needs: website
+          upgrade: 'TRUE'
 
       - name: Build site
         run: pkgdown::build_site_github_pages(new_process = FALSE, install = FALSE)