build(gha): Add GCB context to GitHub status provider

Author: BYK

.craft.yml

@@ -7,6 +7,9 @@ changelog: CHANGES
 changelogPolicy: auto
 statusProvider:
   name: github
+  config:
+    contexts:
+      - Trigger: 7973c658-e248-4a14-8552-7a66caa7fc0c
 targets:
   - name: github
   - name: pypi