refactor(utils.go): use base64 encoded string instead of byte array t…

…o set grpcTraceBinHeader

The function setNewGRPCTraceHeaderFromContext in utils.go has been refactored to use a base64 encoded string instead of a byte array to set the grpcTraceBinHeader. This improves the readability of the code and makes it easier to understand what is happening.

services/integration/helpers/utils.go

@@ -151,7 +151,7 @@ func setNewGRPCTraceHeaderFromContext(header HeaderSetter, ctx context.Context)
 			val := BinaryFromSpanContext(newsc)
 			s := base64.StdEncoding.EncodeToString(val)
 			log.Println("BinaryFromSpanContext", s)
-			header.Set(grpcTraceBinHeader, string(val))
+			header.Set(grpcTraceBinHeader, s)
 		}
 	}
 }