chore: Bump actions/configure-pages from 5 to 6 (#45)

Bumps [actions/configure-pages](https://github.com/actions/configure-pages) from 5 to 6.
- [Release notes](https://github.com/actions/configure-pages/releases)
- [Commits](actions/configure-pages@v5...v6)

---
updated-dependencies:
- dependency-name: actions/configure-pages
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/pages.yml

@@ -29,7 +29,7 @@ jobs:
         with:
           tool: mdbook
       - run: mdbook build site
-      - uses: actions/configure-pages@v5
+      - uses: actions/configure-pages@v6
       - uses: actions/upload-pages-artifact@v5
         with:
           path: site/book