Use setup-r-dependencies for R package installation

Replaced manual R package installation with setup-r-dependencies action for improved dependency management.

Author: Nowosad

.github/workflows/main.yaml

@@ -33,10 +33,20 @@ jobs:
                                                  'https://cloud.r-project.org'))"
 
       - name: Install R deps (for book building)
-        run: |
-          Rscript -e "install.packages('pak', repos = 'https://cloud.r-project.org')"
-          Rscript -e "pak::pkg_install(c('curl', 'dplyr','formatR', 'spData', 'tidyr', 'kableExtra', 'tinytable', 'webshot'))"
-
+        uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          install-quarto: false
+          cache-version: 2
+          packages: |
+              any::curl
+              any::dplyr
+              any::formatR
+              any::spData
+              any::tidyr
+              any::kableExtra
+              any::tinytable
+              any::webshot
+  
       - name: Get Quarto
         uses: quarto-dev/quarto-actions/setup@v2
         with: