chore(ci): add informational Codecov status checks

we were usng Codecov but weren't actually getting any notifications on pull requests.
Update codecov.yml
Removing `after_n_builds` as there is only 1 build

CHANGELOG.txt

@@ -12,6 +12,7 @@ Changelog
  * Use `InlinePanel`'s label when available for field comparison label (Sandil Ranasinghe)
  * Drop support for Safari 13 by removing left/right positioning in favour of CSS logical properties (Thibaud Colas)
  * Use `FormData` instead of jQuery's `form.serialize` when editing documents or images just added so that additional fields can be better supported (Stefan Hammer)
+ * Add informational Codecov status checks for GitHub CI pipelines (Tom Hu)
  * Fix: Typo in `ResumeWorkflowActionFormatter` message (Stefan Hammer)
  * Fix: Throw a meaningful error when saving an image to an unrecognised image format (Christian Franke)
 

CONTRIBUTORS.rst

@@ -597,6 +597,7 @@ Contributors
 * Przemysław Buczkowski
 * Josh Woodcock
 * Christian Franke
+* Tom Hu
 
 Translators
 ===========

codecov.yml

@@ -1,11 +1,14 @@
 codecov:
   notify:
-    after_n_builds: 10
     require_ci_to_pass: no
 
 coverage:
   status:
-    project: off
-    patch: off
+    project:
+      default:
+        informational: true
+    patch:
+      default:
+        informational: true
 
 comment: off

docs/releases/4.0.md

@@ -16,8 +16,9 @@ depth: 1
  * Add `base_url_path` to `ModelAdmin` so that the default URL structure of app_label/model_name can be overridden (Vu Pham, Khanh Hoang)
  * Add `full_url` to the API output of `ImageRenditionField` (Paarth Agarwal)
  * Use `InlinePanel`'s label when available for field comparison label (Sandil Ranasinghe)
- * Use `FormData` instead of jQuery's `form.serialize` when editing documents or images just added so that additional fields can be better supported (Stefan Hammer)
  * Drop support for Safari 13 by removing left/right positioning in favour of CSS logical properties (Thibaud Colas)
+ * Use `FormData` instead of jQuery's `form.serialize` when editing documents or images just added so that additional fields can be better supported (Stefan Hammer)
+ * Add informational Codecov status checks for GitHub CI pipelines (Tom Hu)
 
 ### Bug fixes