upstream change in codecov location (#121)

Author: chayim

.circleci/config.yml

@@ -60,7 +60,7 @@ jobs:
       - run: make test
       - run: make godoc_examples
       - run: make coverage
-      - run: bash <(curl -s https://raw.githubusercontent.com/codecov/codecov-action/master/codecov) -t ${CODECOV_TOKEN}
+      - run: bash <(curl -s https://raw.githubusercontent.com/codecov/codecov-bash/master/codecov) -t ${CODECOV_TOKEN}
 
   build-v16:
     docker: