chore: bump actions/upload-artifact from 4 to 5 in the actions group

Bumps the actions group with 1 update: [actions/upload-artifact](https://github.com/actions/upload-artifact).


Updates `actions/upload-artifact` from 4 to 5
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v5)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/build-book.yml

@@ -53,7 +53,7 @@ jobs:
 
       # Save html as artifact
       - name: Save book html as artifact for viewing
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: book-html
           path: |