Use pak-based installation for renv, which includes system requirements

* Note that the released version of `remotes` is pretty old and does not support Ubuntu 22.04. We could possibly rely on a development version, but we try to go for pak directly.
* See r-lib/actions#785

.github/workflows/ci-cd-renv.yml

@@ -33,6 +33,8 @@ jobs:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
       # Preserve package sources for informative references in case of errors
       R_KEEP_PKG_SOURCE: yes
+      # Enable pak-based installation for renv (including system requirements)
+      RENV_CONFIG_PAK_ENABLED: TRUE
 
     steps:
 
@@ -46,16 +48,6 @@ jobs:
           # No RStudio Package Manager to respect renv.lock
           use-public-rspm: false
 
-      - name: Install system dependencies
-        # This is not taken care of (yet) by r-lib/actions/setup-renv
-        # Package distro used to get the distro for the used ubuntu-latest
-        run: |
-          Rscript -e "install.packages(c('remotes', 'distro'))"
-          while read -r cmd
-          do
-            eval sudo $cmd
-          done < <(Rscript -e 'writeLines(with(distro::distro(), remotes::system_requirements(id, short_version)))')
-
       - name: Activate renv and restore packages with cache
         uses: r-lib/actions/setup-renv@v2