fix test

Author: Brooooooklyn

test/nice.ts

@@ -2,16 +2,14 @@ import Piscina from '..';
 import { resolve } from 'path';
 import { test } from 'tap';
 
-test('can set niceness for threads on Linux', {
-  skip: process.platform !== 'linux'
-}, async ({ equal }) => {
+test('can set niceness for threads on Linux', async ({ equal }) => {
   const worker = new Piscina({
     filename: resolve(__dirname, 'fixtures/eval.js'),
     niceIncrement: 5
   });
 
   const currentNiceness = (await import('@napi-rs/nice')).nice(0);
-  const result = await worker.runTask('require("@napi-rs/nice").nice()');
+  const result = await worker.runTask('require("@napi-rs/nice").nice(0)');
 
   // niceness is capped to 19 on Linux.
   const expected = Math.min(currentNiceness + 5, 19);