chore(ci): add informational Codecov status checks (#4547)

Hi, Tom from Codecov here. I noticed that you were using Codecov but weren't actually getting any notifications on pull requests. I figured it would be useful to get some idea if code being changed is being tested, but also not blocking CI/merging. Let me know if this makes sense or if we can do something that would be helpful.

Co-authored-by: Lukas Holzer <lukas.holzer@netlify.com>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

Author: 3 people

codecov.yml

@@ -6,6 +6,10 @@ coverage:
     javascript:
       enable_partials: true
   status:
-    project: false
-    patch: false
+    project:
+      default:
+        informational: true
+    patch:
+      default:
+        informational: true
 comment: false