Update Hugo version to 0.146.0

The hugo-book theme requires Hugo >= 0.146.0.
Update from 0.128.0 to meet the minimum version requirement.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: DavidLiedle

.github/workflows/hugo.yml

@@ -30,7 +30,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     env:
-      HUGO_VERSION: 0.128.0
+      HUGO_VERSION: 0.146.0
     steps:
       - name: Install Hugo CLI
         run: |
@@ -53,9 +53,7 @@ jobs:
           HUGO_ENVIRONMENT: production
         run: |
           cd website
-          hugo \
-            --minify \
-            --baseURL "${{ steps.pages.outputs.base_url }}/"
+          hugo --minify
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with: