Require Node.js 12 and move to ESM

Author: sindresorhus

.github/funding.yml

@@ -10,13 +10,12 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
+          - 16
           - 14
           - 12
-          - 10
-          - 8
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install

.github/workflows/main.yml

@@ -3,7 +3,7 @@ Regular expression for matching [semver](https://github.com/npm/node-semver) ver
 
 @example
 ```
-import semverRegex = require('semver-regex');
+import semverRegex from 'semver-regex';
 
 semverRegex().test('v1.0.0');
 //=> true
@@ -18,6 +18,4 @@ semverRegex().exec('unicorn 1.0.0 rainbow')[0];
 //=> ['1.0.0', '2.1.3']
 ```
 */
-declare function semverRegex(): RegExp;
-
-export = semverRegex;
+export default function semverRegex(): RegExp;

index.d.ts

@@ -1,2 +1,3 @@
-'use strict';
-module.exports = () => /(?<=^v?|\sv?)(?:(?:0|[1-9]\d*)\.){2}(?:0|[1-9]\d*)(?:-(?:0|[1-9]\d*|[\da-z-]*[a-z-][\da-z-]*)(?:\.(?:0|[1-9]\d*|[\da-z-]*[a-z-][\da-z-]*))*)?(?:\+[\da-z-]+(?:\.[\da-z-]+)*)?\b/gi;
+export default function semverRegex() {
+	return /(?<=^v?|\sv?)(?:(?:0|[1-9]\d*)\.){2}(?:0|[1-9]\d*)(?:-(?:0|[1-9]\d*|[\da-z-]*[a-z-][\da-z-]*)(?:\.(?:0|[1-9]\d*|[\da-z-]*[a-z-][\da-z-]*))*)?(?:\+[\da-z-]+(?:\.[\da-z-]+)*)?\b/gi;
+}

index.js

@@ -1,4 +1,4 @@
 import {expectType} from 'tsd';
-import semverRegex = require('.');
+import semverRegex from './index.js';
 
 expectType<RegExp>(semverRegex());

index.test-d.ts

@@ -10,8 +10,10 @@
 		"email": "[email protected]",
 		"url": "https://sindresorhus.com"
 	},
+	"type": "module",
+	"exports": "./index.js",
 	"engines": {
-		"node": ">=8"
+		"node": ">=12"
 	},
 	"scripts": {
 		"test": "xo && ava && tsd"
@@ -31,8 +33,8 @@
 		"semantic"
 	],
 	"devDependencies": {
-		"ava": "^1.4.1",
-		"tsd": "^0.7.2",
-		"xo": "^0.24.0"
+		"ava": "^3.15.0",
+		"tsd": "^0.14.0",
+		"xo": "^0.39.1"
 	}
 }

package.json

@@ -11,7 +11,7 @@ $ npm install semver-regex
 ## Usage
 
 ```js
-const semverRegex = require('semver-regex');
+import semverRegex from 'semver-regex';
 
 semverRegex().test('v1.0.0');
 //=> true

readme.md

@@ -1,5 +1,5 @@
 import test from 'ava';
-import semverRegex from '.';
+import semverRegex from './index.js';
 
 const fixtures = [
 	'0.0.0',