fix: revert CI setup-r-dependencies to valid pak syntax

Replace invalid `packages: hard-deps::., any::rcmdcheck` with
`needs: check` which is the correct parameter for setup-r-dependencies@v2.
This was causing all 5 CI jobs to fail at the dependency installation step.

Author: Mike Nguyen

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

@@ -44,7 +44,7 @@ jobs:
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
           extra-packages: any::rcmdcheck
-          packages: hard-deps::., any::rcmdcheck
+          needs: check
 
       - uses: r-lib/actions/check-r-package@v2
         with: