fix(test): normalize CLI paths on Windows

packages/update/scripts/xuqm-rn.test.mjs

@@ -4,8 +4,9 @@ import { mkdirSync, mkdtempSync, readFileSync, rmSync, writeFileSync } from 'nod
 import { tmpdir } from 'node:os'
 import path from 'node:path'
 import test from 'node:test'
+import { fileURLToPath } from 'node:url'
 
-const cli = new URL('./xuqm-rn.mjs', import.meta.url).pathname
+const cli = fileURLToPath(new URL('./xuqm-rn.mjs', import.meta.url))
 
 test('embed creates a complete versioned manifest from a host fixture', () => {
   const root = mkdtempSync(path.join(tmpdir(), 'xuqm-cli-'))