fix: update node.js version in github Actions.

Author: tkskto

.github/workflows/publish-packages.yml

@@ -11,7 +11,7 @@ jobs:
       # publish for npm package.
       - uses: actions/setup-node@v3
         with:
-          node-version: '12.x'
+          node-version: '18.x'
           registry-url: 'https://registry.npmjs.org'
       - run: |
           npm ci