Modify build and push lambda to use this branch

Author: adamfraser

.github/workflows/indexer-build-and-push-lambda.yml

@@ -1,6 +1,11 @@
 name: Indexer Build and push Lambda
 
 on:
+  push:
+    branches:
+      - adam/ct-861-websocket-topic-for-blockheight
+      - 'release/indexer/v[0-9]+.[0-9]+.x'  # e.g. release/indexer/v0.1.x
+      - 'release/indexer/v[0-9]+.x'  # e.g. release/indexer/v1.x
   workflow_call:
     inputs:
       ENVIRONMENT: