CI: Setup R

Author: vtraag

.github/workflows/build_deploy_athenarc.yml

@@ -31,6 +31,12 @@ jobs:
       - name: (Causal intro) Install system dependencies
         run: sudo apt install -y libglpk40 libpoppler-cpp-dev poppler-data libjpeg-dev libmagick++-dev libcurl4-openssl-dev libharfbuzz-dev libfribidi-dev
 
+      - name: (Causal intro) Setup R
+        uses: r-lib/actions/setup-r@v2
+        with:
+          working-directory: causal_intro
+          r-version: renv
+
       - name: (Causal intro) Setup renv
         uses: r-lib/actions/setup-renv@v2
         with: