Merge pull request #2 from open-mpi/pr/update-github-actions

action.yaml: update to newer Github actions versions

Author: jsquyres

action.yaml

@@ -20,13 +20,13 @@ runs:
   using: "composite"
   steps:
   - name: Check out the code
-    uses: actions/checkout@v2
+    uses: actions/checkout@v3
     with:
       # Get all branches and history
       fetch-depth: 0
 
   - name: Setup Python
-    uses: actions/setup-python@v2
+    uses: actions/setup-python@v4
     with:
       python-version: '3.x'