Fix npm-publish github action (#69)

* Fix npm-publish github action

* Only update the build step, publish-npm can still be on v16

Author: amahadaya

.github/workflows/npm-publish.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: 16
+          node-version: 18.20.1
       - name: Install Prism
         run: (yarn global add @stoplight/prism-cli)
       - name: Start Prism Server