ci(docs): build documentation with Julia 1.11

Author: FedericoStra

.github/workflows/CI.yml

@@ -41,7 +41,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v2
         with:
-          version: '1.9'
+          version: '1.11'
       - run: |
           julia --project=docs -e '
             using Pkg