Update Node.js version in publish workflow

Author: mariasenosiain

.github/workflows/publish.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v1
       - uses: actions/setup-node@v1
         with:
-          node-version: 14
+          node-version: 18
           registry-url: https://registry.npmjs.org/
       - run: yarn install
       - run: npm publish --access public