Merge pull request #81 from stackhpc/update-actions

CI: Update versions used of community GitHub Actions

Author: markgoddard

.github/workflows/test.yml

@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
     steps:
       # Checks-out the repository under $GITHUB_WORKSPACE, so it's accessible to the job
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Install dependencies
         run: |