Further attempt to prevent codecov posting failure messages (#8050)

.github/codecov.yml

@@ -1,9 +1,7 @@
 coverage:
   status:
-    patch:
-      default:
-        enabled: no
-        if_not_found: success
+    project: off
+    patch: off
 comment:
   layout: "diff, files"
   behavior: default

.github/workflows/test_coverage.yml

@@ -25,4 +25,5 @@ jobs:
       - name: Upload coverage
         uses: codecov/codecov-action@v2
         with:
+          fail_ci_if_error: false
           verbose: true