cd: Publish to NPM on tag

Author: mstokes-f5

.github/workflows/pipeline.yml

@@ -30,3 +30,18 @@ jobs:
         node-version: ${{ matrix.node-version }}
     - run: npm ci
     - run: npm audit
+  publish:
+    if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
+    needs: [test, audit]
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Setup Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: 12
+        registry-url: https://registry.npmjs.org/
+    - run: npm ci
+    - run: npm publish --access public
+      env:
+        NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}