Fix the failing codecov upload

codecov/codecov-action#1487

Author: FanwangM

.github/workflows/ci_codecov.yml

@@ -67,7 +67,7 @@ jobs:
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         # Temp fix for https://github.com/codecov/codecov-action/issues/1487
-        version: v0.6.0
+        # version: v0.6.0
         fail_ci_if_error: true
         file: ./coverage.xml
         flags: unittests