Try to follow core syntax for timeout

Author: anthonykim1

src/common/utils/asyncUtils.ts

@@ -1,3 +1,9 @@
 export async function sleep(milliseconds: number) {
     return new Promise<void>((resolve) => setTimeout(resolve, milliseconds));
 }
+
+export function timeout(ms: number): Promise<void> {
+    return new Promise((resolve) => setTimeout(resolve, ms));
+}
+
+// TODO: Bring timeouts from VS Code: src/vs/base/common/async.ts

src/features/terminal/utils.ts

@@ -1,6 +1,7 @@
 import * as path from 'path';
 import { Disposable, Terminal, TerminalOptions, Uri } from 'vscode';
 import { PythonEnvironment, PythonProject, PythonProjectEnvironmentApi, PythonProjectGetterApi } from '../../api';
+import { timeout } from '../../common/utils/asyncUtils';
 import { onDidChangeTerminalShellIntegration, onDidWriteTerminalData } from '../../common/window.apis';
 import { getConfiguration, getWorkspaceFolders } from '../../common/workspace.apis';
 
@@ -27,9 +28,7 @@ export async function waitForShellIntegration(terminal: Terminal): Promise<boole
     try {
         const result = await Promise.race([
             // Condition 1: Shell integration timeout setting
-            new Promise<boolean>((resolve) => {
-                setTimeout(() => resolve(false), timeoutMs);
-            }),
+            timeout(timeoutMs).then(() => false),
 
             // Condition 2: Shell integration becomes available
             new Promise<boolean>((resolve) => {