Update codecov patch comparison to succeed

The patch comparison of codecov can still fail which is not what we
want. This can cause trouble if there are no coverage related code
changes involved.

Signed-off-by: Sascha Grunert <[email protected]>

Author: saschagrunert

.codecov.yml

@@ -16,8 +16,15 @@ coverage:
         # allowed to drop coverage and still result in a "success" commit status
         threshold: null
         if_not_found: success
+        if_no_uploads: success
+        if_ci_failed: error
+    patch:
+      default:
+        enabled: true
+        threshold: null
+        if_not_found: success
+        if_no_uploads: success
         if_ci_failed: error
-    patch: true
     changes: false
 
 comment: