Updated checkout action

Author: srosenberg-coveo

.github/workflows/createNewAtomicSandBoxDemo.yml

@@ -10,7 +10,7 @@ jobs:
         uses: ruby/setup-ruby@v1
         with:
           ruby-version: '3.1.2'
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - run: 'echo "payload: ${{ toJson(github.event.client_payload) }}"'
       - name: Make a new Branch
         uses: peterjgrainger/action-create-branch@b48b0ca0e307c9b56f059b70274984ffeaa90a43