test(linter/plugins): do not run pnpm in tests

Author: overlookmotel

apps/oxlint/test/eslint-compat.test.ts

@@ -1,14 +1,17 @@
+import { join as pathJoin } from 'node:path';
 import { describe, it } from 'vitest';
 import { testFixtureWithCommand } from './utils.js';
 
+const ESLINT_PATH = pathJoin(import.meta.dirname, '../node_modules/.bin/eslint');
+
 /**
  * Run ESLint on a test fixture.
  * @param fixtureName - Name of the fixture directory within `test/fixtures`
  */
 async function testFixture(fixtureName: string): Promise<void> {
   await testFixtureWithCommand({
-    command: 'pnpx',
-    args: ['eslint'],
+    command: ESLINT_PATH,
+    args: [],
     fixtureName,
     snapshotName: 'eslint',
   });