action: add node package

Author: rynz

.github/workflows/nodejs-package.yml

@@ -0,0 +1,17 @@
+name: Node Package
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 12
+          registry-url: https://npm.pkg.github.com/
+      - run: npm ci
+      - run: npm publish