add breaking change exception for reverted code

allowed-breaking-changes.txt

@@ -56,3 +56,10 @@ incompatible-argument:@aws-cdk/aws-ecs.TaskDefinition.addVolume
 # We made properties optional and it's really fine but our differ doesn't think so.
 weakened:@aws-cdk/cloud-assembly-schema.DockerImageSource
 weakened:@aws-cdk/cloud-assembly-schema.FileSource
+
+# https://github.com/aws/aws-cdk/pull/13145
+removed:@aws-cdk/core.AssetStaging.isArchive
+removed:@aws-cdk/core.AssetStaging.packaging
+removed:@aws-cdk/core.BundlingOutput
+removed:@aws-cdk/core.BundlingOptions.outputType
+