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

Author: renovate-bot

.github/workflows/checks.yml

@@ -67,7 +67,7 @@ jobs:
         shell: bash
         run: poetry run coverage xml
 
-      - uses: codecov/codecov-action@v2
+      - uses: codecov/codecov-action@v3
         with:
           files: ./coverage.xml