remove things to try to fix stringi cli error

Author: SteveBronder

.github/workflows/R-CMD-check.yaml

@@ -58,9 +58,7 @@ jobs:
 
       - uses: r-lib/actions/setup-r-dependencies@v2.8.7
         with:
-          cache-version: 2
           extra-packages: any::rcmdcheck, local::.
-          upgrade: "TRUE"
 
       - name: Install cmdstan
         run: |