Use GitHub Actions (#318)

Author: nickserv

.github/workflows/test.yml

@@ -0,0 +1,27 @@
+name: Tests
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: Test Suite
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set up Node
+        uses: actions/setup-node@v1
+        with:
+          node-version: 14
+          cache: npm
+
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run build
+        run: npm run build
+
+      - name: Run test suite
+        run: npm test

.travis.yml

@@ -2,7 +2,7 @@
 
 Thunk [middleware](https://redux.js.org/advanced/middleware) for Redux.
 
-[![build status](https://img.shields.io/travis/reduxjs/redux-thunk/master.svg?style=flat-square)](https://travis-ci.org/reduxjs/redux-thunk)
+![GitHub Workflow Status](https://img.shields.io/github/workflow/status/reduxjs/redux-thunk/Tests)
 [![npm version](https://img.shields.io/npm/v/redux-thunk.svg?style=flat-square)](https://www.npmjs.com/package/redux-thunk)
 [![npm downloads](https://img.shields.io/npm/dm/redux-thunk.svg?style=flat-square)](https://www.npmjs.com/package/redux-thunk)