Deduplicate more

src/infra/update-runner.test.ts

@@ -2,6 +2,7 @@ import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { pathExists } from "../utils.js";
 import { runGatewayUpdate } from "./update-runner.js";
 
 type CommandResult = { stdout?: string; stderr?: string; code?: number };
@@ -21,15 +22,6 @@ function createRunner(responses: Record<string, CommandResult>) {
   return { runner, calls };
 }
 
-async function pathExists(targetPath: string): Promise<boolean> {
-  try {
-    await fs.stat(targetPath);
-    return true;
-  } catch {
-    return false;
-  }
-}
-
 describe("runGatewayUpdate", () => {
   let tempDir: string;