Add a GitHub Workflow to validate JS bindings

.github/workflows/validate-js.yml

@@ -0,0 +1,27 @@
+name: JavaScript
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Build + Test
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup
+        uses: ./.github/actions/setup-js
+
+      - name: yarn build
+        run: yarn build
+        working-directory: javascript
+
+      - name: yarn test
+        run: yarn test
+        working-directory: javascript