chore: bump actions/setup-node from 4 to 6

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 4 to 6.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v4...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/pull-request.yml

@@ -34,7 +34,7 @@ jobs:
     steps:
       - name: 'Checkout'
         uses: actions/checkout@v6
-      - uses: actions/setup-node@v6.2.0
+      - uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: yarn
@@ -84,7 +84,7 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
-      - uses: actions/setup-node@v6.2.0
+      - uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: yarn
@@ -112,7 +112,7 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
-      - uses: actions/setup-node@v6.2.0
+      - uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: yarn

.github/workflows/release-publish.yml

@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 24
           cache: yarn
@@ -55,7 +55,7 @@ jobs:
         run: echo "version=$(cat VERSION)" >> "$GITHUB_OUTPUT"
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 24
           registry-url: https://registry.npmjs.org