Update node version for publish action

Author: momenso

.github/workflows/npm-publish.yml

@@ -9,9 +9,9 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: '12.x'
+          node-version: '20.x'
           registry-url: 'https://registry.npmjs.org'
       - run: npm ci
       - run: npm publish
         env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}