chore: add CI run-tests action

Author: shinsenter

.github/workflows/run-tests.yml

@@ -0,0 +1,23 @@
+name: Run tests
+
+on:
+  workflow_dispatch:
+  push:
+    branches: [ master ]
+    paths:
+      - 'src/**'
+      - 'package.json'
+      - 'yarn.lock'
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+          cache: 'yarn'
+      - run: yarn && yarn build && yarn test