ci(deps): bump actions/configure-pages from 5 to 6

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

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

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

.github/workflows/docs.yml

@@ -55,7 +55,7 @@ jobs:
 
       - name: Setup Pages
         id: pages
-        uses: actions/configure-pages@v5
+        uses: actions/configure-pages@v6
         if: github.ref == 'refs/heads/main' || (github.event_name == 'workflow_dispatch' && github.event.inputs.deploy_to_pages == 'true')
 
       - name: Build Sphinx documentation

docs/requirements.txt

@@ -7,7 +7,7 @@ myst-parser>=0.18.0
 sphinx-autodoc-typehints>=1.19.0
 
 # Additional Sphinx extensions
-sphinx-copybutton>=0.5.2
+sphinx-copybutton>=0.5.0
 sphinx-tabs>=3.4.0
 
 # For parsing project dependencies