ci: github actions (#1)

.github/workflows/test.yml

@@ -0,0 +1,25 @@
+name: Build
+
+on:
+  push:
+    branches: [$default-branch]
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18.x, 20.x]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'yarn'
+      - run: yarn install --frozen-lockfile
+      - run: yarn build
+      - run: yarn lint
+      - run: yarn format
+      - run: yarn test