Update publish-next GitHub workflow

- Use Node 20 instead of Node 12
- Run `npm ci` instead of `npm install` to prevent unexpected dependency changes from being installed

.github/workflows/publish-next.yml

@@ -14,12 +14,12 @@ jobs:
             - name: Set up Node.js
               uses: actions/setup-node@v1
               with:
-                  node-version: 12.x
+                  node-version: 20.11.1
             - run: |
                   git config --local user.email "[email protected]"
                   git config --local user.name "Osp Rey [CI]"
             - run: echo "//registry.npmjs.org/:_authToken=${NPM_TOKEN}" > .npmrc
-            - run: npm install
+            - run: npm ci
             - run: npm test
             - run: npm run build
             - run: ./node_modules/.bin/lerna publish --conventional-commits --conventional-prerelease --pre-dist-tag next --yes