Bump the github-actions group with 2 updates (#1733)

Author: dependabot[bot]

.github/workflows/tests.yml

@@ -38,7 +38,7 @@ jobs:
           coverage report --show-missing
           mv .coverage .coverage.${{ matrix.python-version }}
       - name: Store coverage file
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           include-hidden-files: true
           name: coverage-${{ matrix.python-version }}
@@ -65,7 +65,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         id: download
         with:
           pattern: coverage-*
@@ -79,7 +79,7 @@ jobs:
           MERGE_COVERAGE_FILES: true
 
       - name: Store Pull Request comment to be posted
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: steps.coverage_comment.outputs.COMMENT_FILE_WRITTEN == 'true'
         with:
           name: python-coverage-comment-action