build(deps): bump actions/deploy-pages from 1.2.5 to 1.2.6

Bumps [actions/deploy-pages](https://github.com/actions/deploy-pages) from 1.2.5 to 1.2.6.
- [Release notes](https://github.com/actions/deploy-pages/releases)
- [Commits](https://github.com/actions/deploy-pages/compare/v1.2.5...v1.2.6)

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

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

.github/workflows/docs.yaml

@@ -81,4 +81,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v1.2.5
+        uses: actions/deploy-pages@v1.2.6