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

Author: renovate-bot

.github/workflows/CI.yml

@@ -35,7 +35,7 @@ jobs:
       - name: Test
         run: yarn test
       - name: Code coverage
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v2
       - name: Release
         if: github.event_name == 'push' && (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/next')
         run: yarn semantic-release