fix(VirtualStream): Fix keepAlive flag handling in VirtualStream and added stream closure in tests

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@api.global/typedrequest',
-  version: '3.1.2',
+  version: '3.1.3',
   description: 'A TypeScript library for making typed requests towards APIs, including facilities for handling requests, routing, and virtual stream handling.'
 }

ts/classes.virtualstream.ts

@@ -327,7 +327,7 @@ export class VirtualStream<T = Uint8Array> implements plugins.typedRequestInterf
           cycleId: plugins.isounique.uni(),
           cycle: 'request',
           mainPurpose: 'keepAlive',
-          keepAlive: true,
+          keepAlive: this.keepAlive,
         },
         response: null,
       }).catch(() => {