use v6

Signed-off-by: Jade Abraham <jade.abraham@hpe.com>

Author: jabraham17

.github/workflows/masonRegCI.yaml

@@ -11,7 +11,7 @@ jobs:
     container:
       image: chapel/chapel:latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 3
           persist-credentials: false