Second attempt at disabling Codecov annotations (#31841)

.github/codecov.yml

@@ -1,4 +1,3 @@
-annotations: false
 comment: false # Do not leave PR comments
 coverage:
   status:
@@ -10,3 +9,5 @@ coverage:
       default:
         # GitHub status check is not blocking
         informational: true
+github_checks:
+  annotations: false