Add basic CI workflow

.github/workflows/ci.yml

@@ -0,0 +1,39 @@
+name: CI
+
+on:
+  pull_request:
+    branches:
+      - v3
+  push:
+    branches:
+      - v3
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: nanasess/setup-chromedriver@v2
+      - run: |
+          export DISPLAY=:99
+          chromedriver --url-base=/wd/hub &
+          sudo Xvfb -ac :99 -screen 0 1280x1024x24 > /dev/null 2>&1 & # optional
+
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: "3.2.2"
+          bundler-cache: true
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v2-beta
+        with:
+          node-version: "20.11.0"
+          check-latest: true
+
+      - name: Install NPM dependencies
+        run: npm install
+
+      - name: Run tests
+        run: bin/ci

bin/ci

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+bin/test