Add verify bundle action and make inputs 'required'

Signed-off-by: Tim Etchells <tetchell@redhat.com>

.github/workflows/verify-bundle.yml

@@ -0,0 +1,22 @@
+name: Verify Bundle
+on: [ push, pull_request ]
+
+jobs:
+  verify-bundle:
+    name: Verify Distribution Bundle
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        env:
+          DEFAULT_BRANCH: main
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Check Distribution
+        uses: tetchel/bundle-verifier-action@v0.0.2
+        with:
+          bundle_file: dist/index.js
+          bundle_command: "npm run bundle"