Use GitHub Actions

.github/workflows/test.yml

@@ -0,0 +1,15 @@
+name: Test
+
+on: [push, pull_request]
+
+jobs:
+  run:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js
+      uses: actions/setup-node@v1
+    - run: npm install
+    - run: npm test

.travis.yml

@@ -1,8 +0,0 @@
-language: node_js
-
-node_js: node
-
-cache:
-  npm: true
-
-install: npm install