Update actions

Author: ewjoachim

.github/workflows/ci.yml

@@ -11,11 +11,11 @@ jobs:
     runs-on: ubuntu-latest
     name: Check coverage
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Set up Python
         id: setup-python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: 3
 
@@ -33,7 +33,7 @@ jobs:
           VERBOSE: true
 
       - name: Store Pull Request comment to be posted
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         if: steps.coverage_comment.outputs.COMMENT_FILE_WRITTEN == 'true'
         with:
           # If you use a different name, update COMMENT_ARTIFACT_NAME accordingly