chore(dependencies): update codecov/codecov-action action to v2

Author: renovate-bot

.github/workflows/ci.yml

@@ -38,4 +38,4 @@ jobs:
         run: poetry run coverage combine
       - name: Generate coverage.xml
         run: poetry run coverage xml
-      - uses: codecov/codecov-action@v1
+      - uses: codecov/codecov-action@v2