add github actions

Author: smastrom

.github/workflows/tests.yml

@@ -0,0 +1,19 @@
+name: Tests
+
+on: [push, pull_request]
+
+jobs:
+  cypress-run:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '16.x'
+      - name: Install dependencies
+        run: yarn
+      - name: Cypress run
+        uses: cypress-io/github-action@v4
+        with:
+          install: false
+          component: true