Update R-CMD-check.yaml

run GHA checks with correct R versions

fix #47

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

@@ -52,6 +52,7 @@ jobs:
       - uses: r-lib/actions/setup-r@v2
         with:
           extra-repositories: 'https://predictiveecology.r-universe.dev/'
+          r-version: ${{ matrix.config.r }}
           Ncpus: 2
           use-public-rspm: false