benchmark: reduce the buffer size for blob
Presently blob is quite slow and this benchmark doesnt complete on a local machine (or maybe in benchmark ci machines too) in any reasonable time so I propose reducing the max buffer size being used here.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Presently blob is quite slow and this benchmark doesnt complete on a local machine (or maybe in benchmark ci machines too) in any reasonable time so I propose reducing the max buffer size being used here.