don't install {chromote} and {webshot2} separately

.github/workflows/pkgdown.yml

@@ -14,6 +14,9 @@ name: pkgdown
 jobs:
   pkgdown:
     runs-on: ubuntu-latest
+    # Only restrict concurrency for non-PR jobs
+    concurrency:
+      group: pkgdown-${{ github.event_name != 'pull_request' || github.run_id }}
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
     steps:
@@ -25,20 +28,14 @@ jobs:
         with:
           use-public-rspm: true
 
-      - name: Install chromote and webshot2 separately
-        run: |
-          install.packages("pak", repos = "https://r-lib.github.io/p/pak/dev/")
-          pak::pkg_install("rstudio/chromote")
-          pak::pkg_install("rstudio/webshot2")
-        shell: Rscript {0}
-
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
           extra-packages: any::pkgdown, local::.
           needs: website
 
       - name: Build site
-        run: Rscript -e 'pkgdown::build_site_github_pages(new_process = FALSE, install = FALSE)'
+        run: pkgdown::build_site_github_pages(new_process = FALSE, install = FALSE)
+        shell: Rscript {0}
 
       - name: Deploy to GitHub pages 🚀
         if: github.event_name != 'pull_request'