chore: bump actions/setup-node from 5 to 6

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 5 to 6.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v5...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-test.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Fetch submodules
         run: git submodule update --init --recursive
       - name: Setup Node
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: "16.x"
           cache: 'yarn'

.github/workflows/deploy.yml

@@ -15,7 +15,7 @@ jobs:
           fetch-depth: 0
           submodules: recursive
       - name: Setup Node
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: "16.x"
           cache: 'yarn'

.github/workflows/remark-lint.yml

@@ -8,7 +8,7 @@ jobs:
     steps:
     - uses: actions/checkout@v5
     - name: Setup Node
-      uses: actions/setup-node@v5
+      uses: actions/setup-node@v6
       with:
         node-version: '16.x'
         cache: 'yarn'