Update r_ci.yml

Author: sarah-colq

.github/workflows/r_ci.yml

@@ -39,7 +39,7 @@ jobs:
         uses: actions/cache@v2
         with:
           path: ${{ env.R_LIBS_USER }}
-          key: ${{ runner.os }}-r-2-
+          key: ${{ runner.os }}-r-3-
       - name: Install dependencies
         run: |
           install.packages(c("remotes", "rcmdcheck"))
@@ -48,4 +48,4 @@ jobs:
       - name: Check
         run: |
           rcmdcheck::rcmdcheck(args = c("--no-manual", "--ignore-vignettes", "--as-cran"), build_args = c("--no-build-vignettes"), error_on = "error")
-        shell: Rscript {0}
+        shell: Rscript {0}