AWS peer discovery triggers OCI build

The AWS peer discovery workflow relies on the OCI
image existing. We used to build the OCI image for every
commit, so the image always existed. Now we build the OCI
conditionally, so we should trigger the OCI build
when the AWS job starts. Otherwise it will time out
waiting for the image.

Author: mkuratczyk

.github/workflows/oci-make.yaml

@@ -14,6 +14,10 @@ on:
       - rabbitmq-components.mk
       - packaging/**
       - .github/workflows/oci-make.yaml
+  workflow_run:
+    workflows: [Peer Discovery AWS Integration Test]
+    types:
+      - requested
   workflow_dispatch:
     inputs:
       otp_version: