chore(deps): update codecov/codecov-action action to v3 (#60)

Co-authored-by: Matt Kramer <[email protected]>

Author: anaconda-renovate-bot

.github/workflows/test.yml

@@ -36,7 +36,7 @@ jobs:
             run: |
                 coverage run -m pytest tests
                 coverage xml
-        -   uses: codecov/codecov-action@v2
+        -   uses: codecov/codecov-action@d9f34f8cd5cb3b3eb79b3e4b5dae3a16df499a70 # v3
             with:
                 files: ./coverage.xml
                 env_vars: OS,PYTHON