Update codecov/codecov-action action to v2

Author: renovate-bot

.github/workflows/ci.yml

@@ -69,6 +69,6 @@ jobs:
           path: "reports"
 
       - name: "Upload to Codecov"
-        uses: "codecov/codecov-action@v1"
+        uses: codecov/codecov-action@v2
         with:
           directory: reports