Bump actions/setup-node from 6 to 7

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 6 to 7.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v6...v7)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/branch-markdown.yml

@@ -56,7 +56,7 @@ jobs:
 
       - name: Setup Node
         if: steps.changed-files.outputs.count > 0
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v7
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'pnpm'

.github/workflows/branch-spellcheck.yml

@@ -31,7 +31,7 @@ jobs:
           run_install: false
 
       - name: Setup Node
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v7
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'pnpm'