Move to official codecov orb. (#578)

.circleci/config.yml

@@ -1,7 +1,7 @@
 version: 2.1
 
 orbs:
-  codecov: circleci/codecov[email protected]
+  codecov: codecov/codecov@1.1.3
   shellcheck: circleci/[email protected]
   slack: circleci/[email protected]
   windows: circleci/[email protected]
@@ -164,7 +164,7 @@ jobs:
           path: ./coverage.txt
           destination: coverage.txt
       - codecov/upload:
-          path: coverage.txt
+          file: coverage.txt
       - slack-notify-on-failure
 
   docs: