Drop node 8 support (#35)

Drop Travis support for github actions
Update dependencies

.github/workflow/linter.yml

@@ -0,0 +1,20 @@
+name: Linter
+
+on: [push, pull_request]
+
+jobs:
+  linter:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js 14.x
+        uses: actions/setup-node@v2
+        with:
+          node-version: '14.x'
+      - name: Install Dependencies
+        run: npm install
+      - name: Lint
+        run: |
+          npm run eslint
+        env:
+          CI: true

.github/workflow/tester.yml

@@ -0,0 +1,46 @@
+name: Tester
+
+on: [push, pull_request]
+
+jobs:
+  tester:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        node-version: ['10.x', '12.x', '14.x', '16.x']
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install Dependencies
+        run: npm install
+      - name: Test
+        run: npm test -- --no-parallel
+        env:
+          CI: true
+  coverage:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        node-version: ['14.x']
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install Dependencies
+        run: npm install
+      - name: Coverage
+        run: npm run test-cov
+        env:
+          CI: true
+      - name: Coveralls
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.github_token }}

README.md

@@ -1,6 +1,5 @@
 # hexo-clean-css
 
-[![Build Status](https://travis-ci.org/hexojs/hexo-clean-css.svg?branch=master)](https://travis-ci.org/hexojs/hexo-clean-css)
 [![NPM version](https://badge.fury.io/js/hexo-clean-css.svg)](https://www.npmjs.com/package/hexo-clean-css)
 
 Minify CSS files with [clean-css].

package.json

@@ -1,6 +1,6 @@
 {
   "name": "hexo-clean-css",
-  "version": "1.0.0",
+  "version": "2.0.0",
   "description": "Minify CSS files with clean-css.",
   "main": "index.js",
   "scripts": {
@@ -27,16 +27,16 @@
   "license": "MIT",
   "dependencies": {
     "clean-css": "^5.1.2",
-    "micromatch": "^4.0.2"
+    "micromatch": "^4.0.4"
   },
   "devDependencies": {
-    "chai": "^4.2.0",
-    "eslint": "^7.1.0",
+    "chai": "^4.3.4",
+    "eslint": "^7.26.0",
     "eslint-config-hexo": "^4.1.0",
-    "mocha": "^8.0.1",
-    "nyc": "^15.0.0"
+    "mocha": "^8.4.0",
+    "nyc": "^15.1.0"
   },
   "engines": {
-    "node": ">= 8.6.0"
+    "node": ">= 10.18.1"
   }
 }