chore: replace Travis and AppVeyor with GitHub Actions (nodejs#414)

.github/workflows/nodejs.yml

@@ -0,0 +1,44 @@
+name: Node.js CI
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  lint:
+    name: Lint using ESLint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js 14
+        uses: actions/setup-node@v1
+        with:
+          node-version: 14.x
+      - name: npm install and lint
+        run: |
+          npm install
+          npm run lint
+
+  test:
+    name: Test on Node.js ${{ matrix.node-version }} and ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: [10.x, 12.x, 14.x]
+        # TODO(targos): fix and add windows-latest
+        os: [ubuntu-latest, macOS-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: npm install and test
+        run: |
+          npm install
+          npm run coverage-all
+      - name: Upload coverage report to Codecov
+        uses: codecov/codecov-action@v1

README.md

@@ -1,7 +1,6 @@
 # Node.js Core Utilities
 [![npm](https://img.shields.io/npm/v/node-core-utils.svg?style=flat-square)](https://npmjs.org/package/node-core-utils)
-[![Build Status](https://img.shields.io/travis/nodejs/node-core-utils.svg?style=flat-square)](https://travis-ci.org/nodejs/node-core-utils)
-[![AppVeyor Build Status](https://img.shields.io/appveyor/ci/joyeecheung/node-core-utils/master.svg?style=flat-square&logo=appveyor)](https://ci.appveyor.com/project/nodejs/node-core-utils/history)
+[![Build Status](https://img.shields.io/github/workflow/status/nodejs/node-core-utils/Node.js%20CI/master?style=flat-square)](https://github.com/nodejs/node-core-utils/workflows/Node.js%20CI/badge.svg?branch=master)
 [![codecov](https://img.shields.io/codecov/c/github/nodejs/node-core-utils.svg?style=flat-square)](https://codecov.io/gh/nodejs/node-core-utils)
 [![Known Vulnerabilities](https://snyk.io/test/github/nodejs/node-core-utils/badge.svg?style=flat-square)](https://snyk.io/test/github/nodejs/node-core-utils)