fixup! fixup! src: set UV_THREADPOOL_SIZE based on available parallelism

Author: RafaelGSS

test/parallel/test-uv-threadpool-size-auto.js

@@ -1,4 +1,6 @@
 'use strict';
+require('../common');
+
 const { spawnSyncAndAssert } = require('../common/child_process');
 const assert = require('assert');
 const os = require('os');