ci: add GH actions for building, linting and testing package before m…

…erge (#8)

.github/workflows/tests.yml

@@ -0,0 +1,27 @@
+name: Tests
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - '**'
+  workflow_dispatch:
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: with NodeJS
+        uses: actions/setup-node@v3
+        with:
+          node-version: '18.x'
+          cache: 'npm'
+      - run: npm ci
+      - run: npm run build
+      - run: npm run lint
+      - run: npm test