add curl for R

Author: Heliozoa

.github/workflows/test.yml

@@ -17,6 +17,7 @@ jobs:
       - name: Install depedencies
         run: |
           sudo apt install -y check valgrind  # required for make plugin
+          sudo apt install -y libcurl4-openssl-dev  # required for R?
       - uses: r-lib/actions/setup-r@v1
         with:
           r-version: "3.5.3"