chore: Replace Travis-CI with GitHub Actions

Author: nschonni

.github/workflows/ci.yml

@@ -0,0 +1,40 @@
+name: Main CI Workflow
+
+on:
+  pull_request:
+  push:
+
+jobs:
+  build-and-publish:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        node:
+          - 12
+          - 14
+          - 16
+
+        os:
+          - ubuntu-latest
+          - windows-latest
+          - macos-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Setup Node.js environment
+        uses: actions/[email protected]
+        with:
+          node-version: ${{ matrix.node }}
+
+      - name: Install prerequisites
+        run: npm install
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Test
+        run: npm run test