chore(deps): update actions/setup-node action to v6

Author: have-renovate[bot]

.github/workflows/changeset-check.yml

@@ -21,7 +21,7 @@ jobs:
           fetch-depth: 0
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6
         with:
           node-version: '24'
           registry-url: 'https://npm.pkg.github.com'

.github/workflows/publish.yml

@@ -38,7 +38,7 @@ jobs:
           token: ${{ steps.app-token.outputs.token }}
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6
         with:
           node-version: '24'
           registry-url: 'https://npm.pkg.github.com'

.github/workflows/test.yml

@@ -21,7 +21,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6
         with:
           node-version: '24'
           registry-url: 'https://npm.pkg.github.com'