Add GITHUB PAT

Author: mrustl

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

@@ -29,6 +29,7 @@ jobs:
           - {os: windows-latest, r: 'release'}
 
     env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
       R_REMOTES_NO_ERRORS_FROM_WARNINGS: true
       RSPM: ${{ matrix.config.rspm }}