fix: use fs.promises

test/package-install.js

@@ -2,12 +2,12 @@
 
 const { execSync } = require('child_process');
 const path = require('path');
-const { readFileSync } = require('fs');
+const { readFile } = require('fs').promises;
 
 const assert = require('assert');
 
 describe('Package install', () => {
-	it('should remove non-`nodebb-` modules not specified in `install/package.json`', () => {
+	it('should remove non-`nodebb-` modules not specified in `install/package.json`', async () => {
 		const oldValue = process.env.NODE_ENV;
 		process.env.NODE_ENV = 'development';
 		const packageFilePath = path.join(__dirname, '../package.json');
@@ -18,15 +18,17 @@ describe('Package install', () => {
 		execSync('npm install dotenv --save');
 
 		// assert it saves in package.json
-		const packageWithExtras = JSON.parse(readFileSync(packageFilePath, 'utf8'));
+		const packageWithExtras = JSON.parse(await readFile(packageFilePath, 'utf8'));
 		assert(packageWithExtras.dependencies.dotenv, 'dependency did not save');
 
 		// update the package file
 		require('../src/cli/package-install').updatePackageFile();
 
 		// assert it removed the extra package
-		const packageCleaned = JSON.parse(readFileSync(packageFilePath, 'utf8'));
+		const packageCleaned = JSON.parse(await readFile(packageFilePath, 'utf8'));
 		assert(!packageCleaned.dependencies.dotenv, 'dependency was not removed');
 		process.env.NODE_ENV = oldValue;
 	});
+
+	// it('should ')
 });