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

Author: renovate[bot]

.github/workflows/pre-release.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v6
         with:
           node-version: '*'
           cache: 'npm'

.github/workflows/release-please.yml

@@ -20,7 +20,7 @@ jobs:
           package-name: '@netlify/plugin-nextjs'
       - uses: actions/checkout@v3
         if: ${{ steps.release.outputs.release_created }}
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v6
         with:
           node-version: '*'
           cache: 'npm'