Update R-CMD-check.yaml

Author: dsass1

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

@@ -24,7 +24,7 @@ jobs:
 
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
-      R_KEEP_PKG_SOURCE: yes
+      R_KEEP_PKG_SOURCE: no
     steps:
       - uses: actions/checkout@v4