Bump actions/setup-node from 3 to 6

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 3 to 6.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v3...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] <[email protected]>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -130,7 +130,7 @@ jobs:
           path: ${{ env.special-working-directory-relative }}
 
       - name: Install Node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'

.github/workflows/pr-check.yml

@@ -105,7 +105,7 @@ jobs:
           path: ${{ env.special-working-directory-relative }}
 
       - name: Install Node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'
@@ -326,7 +326,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'