Bump actions/setup-node from 4.4.0 to 6.0.0

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 4.4.0 to 6.0.0.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](https://github.com/actions/setup-node/compare/v4.4.0...v6.0.0)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build-pull-request.yml

@@ -14,7 +14,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4.2.0
       - name: Setup node
-        uses: actions/setup-node@v4.4.0
+        uses: actions/setup-node@v6.0.0
         with:
           node-version: 20.12.2
           cache: 'npm'

.github/workflows/netlify-dev.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4.2.0
       - name: Setup node
-        uses: actions/setup-node@v4.4.0
+        uses: actions/setup-node@v6.0.0
         with:
           node-version: 20.12.2
           cache: 'npm'

.github/workflows/prod-deploy.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4.2.0
       - name: Setup node
-        uses: actions/setup-node@v4.4.0
+        uses: actions/setup-node@v6.0.0
         with:
           node-version: 20.12.2
           cache: 'npm'