Add github actions workflow

.github/workflows/test.yml

@@ -0,0 +1,34 @@
+on:
+  push:
+    branches: [ "*" ]
+  pull_request:
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        node-version: ['latest', 'lts/iron']
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Install Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ matrix.node-version }}
+    - name: Enable corepack
+      run: corepack enable
+    - name: Get yarn cache directory path
+      id: yarn-cache-dir-path
+      run: echo "dir=$(yarn config get cacheFolder)" >> $GITHUB_OUTPUT
+    - uses: actions/cache@v3
+      id: yarn-cache
+      with:
+        path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+        key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-yarn-
+    - name: Install packages
+      run: yarn install --immutable
+    - name: Build with astro
+      run: yarn build