Use Julia 1.11 for documentation build (#561)

Author: ytdHuang

.github/workflows/documentation.yml

@@ -46,7 +46,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
-          version: '1'
+          version: '1.11'
       - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-docdeploy@v1