Disabling breaking changes check on main (opensearch-project#13283)

Signed-off-by: Peter Nied <peternied@hotmail.com>

Author: peternied

.github/workflows/detect-breaking-change.yml

@@ -1,6 +1,8 @@
 name: "Detect Breaking Changes"
 on:
-  pull_request
+  pull_request:
+    branches-ignore:
+      - main # This branch represents a to-be-released version of OpenSearch where breaking changes are allowed
 
 jobs:
   detect-breaking-change: