try adding a required check to see if it helps (#421)

Author: alexanderankin

.github/settings.yml

@@ -143,8 +143,8 @@ branches:
         # Required. Require branches to be up to date before merging.
         strict: false
         # Required. The list of status checks to require in order to merge into this branch
-        contexts: []
-        #  - "core / test (ubuntu, 3.11)"
+        contexts:
+         - "core / test (ubuntu, 3.11)"
       # Required. Enforce all configured restrictions for administrators. Set to true to enforce required status checks for repository administrators. Set to null to disable.
       enforce_admins: false
       # Prevent merge commits from being pushed to matching branches