update to use v4 of checkout action

Signed-off-by: Karl W Schulz <karl.schulz@amd.com>

.github/workflows/mi100.yml

@@ -20,7 +20,7 @@ jobs:
        PYTHONPATH: ${{ github.workspace }}/python-libs
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: recursive
           token: ${{ secrets.GH_PAT }}