Require Node.js 10 and upgrade Mocha

Closes #203
Fixes #202

package.json

@@ -4,13 +4,14 @@
 	"description": "Run Mocha tests",
 	"license": "MIT",
 	"repository": "sindresorhus/gulp-mocha",
+	"funding": "https://github.com/sponsors/sindresorhus",
 	"author": {
 		"name": "Sindre Sorhus",
 		"email": "[email protected]",
-		"url": "sindresorhus.com"
+		"url": "https://sindresorhus.com"
 	},
 	"engines": {
-		"node": ">=8"
+		"node": ">=10"
 	},
 	"scripts": {
 		"test": "xo && ava"
@@ -35,18 +36,18 @@
 	],
 	"dependencies": {
 		"dargs": "^7.0.0",
-		"execa": "^2.0.4",
-		"mocha": "^6.2.0",
+		"execa": "^5.0.0",
+		"mocha": "^8.3.0",
 		"plugin-error": "^1.0.1",
-		"supports-color": "^7.0.0",
-		"through2": "^3.0.1"
+		"supports-color": "^8.1.1",
+		"through2": "^4.0.2"
 	},
 	"devDependencies": {
 		"ava": "^2.3.0",
 		"gulp": "^4.0.2",
-		"p-event": "^4.1.0",
-		"vinyl": "^2.1.0",
-		"xo": "^0.24.0"
+		"p-event": "^4.2.0",
+		"vinyl": "^2.2.1",
+		"xo": "^0.37.1"
 	},
 	"peerDependencies": {
 		"gulp": ">=4"

test/test.js

@@ -3,7 +3,7 @@ import path from 'path';
 import test from 'ava';
 import Vinyl from 'vinyl';
 import pEvent from 'p-event';
-import mocha from '..';
+import mocha from '../index.js';
 
 function fixture(name) {
 	const fileName = path.join(__dirname, 'fixtures', name);

test/utils.js

@@ -1,9 +1,9 @@
 import test from 'ava';
-import m from '../utils';
+import utils from '../utils.js';
 
 test('convertObjectToList produces a comma separated string of k=v', t => {
 	t.is(
-		m.convertObjectToList({key1: 'value1', key2: 'value2', key99: 'value99'}),
+		utils.convertObjectToList({key1: 'value1', key2: 'value2', key99: 'value99'}),
 		'key1=value1,key2=value2,key99=value99'
 	);
 });

utils.js

@@ -2,6 +2,8 @@
 
 function convertObjectToList(object) {
 	return Object.entries(object)
+		// TODO: Stop using `.reduce`
+		// eslint-disable-next-line unicorn/no-array-reduce
 		.reduce((result, current) => result.concat(`${current[0]}=${current[1]}`), [])
 		.join(',');
 }