hotfix: added buffer size to zip channel, 10 items per input

Author: Motalleb Fallahnezhad

core/utils/zip_channels.go

@@ -4,7 +4,8 @@ package utils
 import "sync"
 
 func ZipChannels[T interface{}](channels ...<-chan T) <-chan T {
-	output := make(chan T)
+	// TODO: Temporary solution must switch to pub-sub
+	output := make(chan T, len(channels)*10)
 	wg := new(sync.WaitGroup)
 	for _, ch := range channels {
 		wg.Add(1)