Bump actions/deploy-pages from 4 to 5

Bumps [actions/deploy-pages](https://github.com/actions/deploy-pages) from 4 to 5.
- [Release notes](https://github.com/actions/deploy-pages/releases)
- [Commits](actions/deploy-pages@v4...v5)

---
updated-dependencies:
- dependency-name: actions/deploy-pages
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/builddocs.yml

@@ -47,4 +47,4 @@ jobs:
         path: 'Docs/_site'
     - name: Deploy to GitHub Pages
       id: deployment
-      uses: actions/deploy-pages@v4
+      uses: actions/deploy-pages@v5