Bump actions/setup-node from 5 to 6

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 5 to 6.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/node.yml

@@ -34,7 +34,7 @@ jobs:
           fetch-depth: 2
 
       - name: Setup Node.js 20.x
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: 20.x
 

.github/workflows/publish.yml

@@ -28,7 +28,7 @@ jobs:
           ref: ${{ github.event.inputs.tag }}
 
       - name: Setup Node.js
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: '20.x'
           registry-url: https://registry.npmjs.org
@@ -46,7 +46,7 @@ jobs:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
 
       - name: Change to GitHub Packages registry
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           registry-url: https://npm.pkg.github.com
           scope: '@shivammathur'