ci: 🐛 this can't be a yaml list

Author: lwjohnst86

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

@@ -23,8 +23,8 @@ jobs:
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
           extra-packages: any::rcmdcheck
-          needs:
-            - check
-            - tests
+          needs: |
+            check
+            tests
 
       - uses: r-lib/actions/check-r-package@v2