Bump actions/setup-node from 6 to 7 (#21)

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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/html.yml

@@ -29,7 +29,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v7
         with:
           node-version: lts/*
 

.github/workflows/js.yml

@@ -41,7 +41,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v7
         with:
           node-version: lts/*
       #    cache: npm