Bump actions/configure-pages from 4 to 5

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

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

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

.github/workflows/mdbook.yml

@@ -40,7 +40,7 @@ jobs:
           cargo install --version ${MDBOOK_VERSION} mdbook
       - name: Setup Pages
         id: pages
-        uses: actions/configure-pages@v4
+        uses: actions/configure-pages@v5
       - name: Build with mdBook
         run: mdbook build
         working-directory: docs