Add test workflow.

Author: rkistner

.github/workflows/test.yaml

@@ -0,0 +1,31 @@
+# Ensures packages test correctly
+name: Test Packages
+
+on:
+  push:
+
+jobs:
+  test:
+    name: Test Packages
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+
+      - uses: pnpm/action-setup@v4
+        name: Install pnpm
+
+      - name: Setup NodeJS
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: '.node-version'
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Build
+        run: pnpm build
+
+      - name: Test
+        run: pnpm test