fix: add timeout handling for script execution in Vm class

src/vm/vm.class.ts

@@ -172,16 +172,20 @@ export class Vm {
     `;
 
     const compiledScript = await this.isolate.compileScript(scriptWithResult);
+    let timer = 0n;
 
     const interval = setInterval(() => {
       if (
         this.isolate.cpuTime > this.cpuTimeLimit ||
-        this.isolate.wallTime > this.timeLimit
+        this.isolate.wallTime > this.timeLimit ||
+        timer > this.timeLimit
       ) {
         this.isolate.dispose();
 
         rejectPromise(new Error("Script execution timed out"));
       }
+
+      timer += 500000n;
     }, 500);
 
     compiledScript.run(this.context);