chore(deps): update actions/setup-node action to v6 (#2)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -32,7 +32,7 @@ jobs:
           run_install: false
 
       - name: Node
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: lts/*
           cache: "pnpm"

.github/workflows/publish.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Install pnpm
         uses: pnpm/action-setup@v4
 
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: lts/*
           registry-url: https://registry.npmjs.org/