Update publish.yml

Author: ryantrem

.github/workflows/publish.yml

@@ -28,3 +28,16 @@ jobs:
       - name: Gulp
         run: npx gulp
         working-directory: ./Package
+      - name: Setup Node.js
+        uses: actions/[email protected]
+        with:
+          node-version: '12.x'
+          registry-url: 'https://npm.pkg.github.com'
+          scope: '@babylonjs'
+      - name: Version & Publish Package
+        run: |
+          npm version --no-git-tag-version ${GITHUB_REF/refs\/tags\//}
+          npm publish
+        working-directory: ./Package/Assembled
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}