fix(VirtualStream): Corrected the logic for backpressure handling in response

ts/classes.virtualstream.ts

@@ -269,7 +269,7 @@ export class VirtualStream<T = Uint8Array> implements plugins.typedRequestInterf
           cycle: 'response',
           mainPurpose: 'chunk',
           next: this.sendBackpressuredArray.data.length > 1,
-          backpressure: this.receiveBackpressuredArray.checkSpaceAvailable(),
+          backpressure: !this.receiveBackpressuredArray.checkSpaceAvailable(),
           chunkData: this.sendBackpressuredArray.shift(),
         };
       } else {
@@ -279,6 +279,7 @@ export class VirtualStream<T = Uint8Array> implements plugins.typedRequestInterf
           cycle: 'response',
           mainPurpose: 'feedback',
           next: this.sendBackpressuredArray.data.length > 0,
+          backpressure: !this.receiveBackpressuredArray.checkSpaceAvailable(),
         };
       }
       streamTrArg.request = null;