chore(ci): Add aggregate transform to semantic PR scope list (#24422)

Added aggregate transform to the allowed scopes list in .github/workflows/semantic.yml

Author: kaarolch

.github/workflows/semantic.yml

@@ -178,6 +178,7 @@ jobs:
             vector source
             websocket source
 
+            aggregate transform
             aws_ec2_metadata transform
             dedupe transform
             exclusive_route transform