Ease CI requirements for codecov patch (#1982)

Update codecov patch threshold

We often see +/- very small changes to the patch threashold which
end up reporting as a failure. Set the threshold to 1% so these
-0.05% changes don't impact us as much.

Author: tmshort

codecov.yml

@@ -10,6 +10,10 @@ coverage:
       default:
         target: auto
         threshold: 2%
+    patch:
+      default:
+        target: auto
+        threshold: 1%
   paths:
     - "api/"
     - "cmd/"