fix docs

Author: CarloLucibello

.github/workflows/multidocs.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
-          version: '1'
+          version: '1.12.2' # set to '1' after 1.12.4 release, see https://github.com/JuliaLang/Pkg.jl/pull/4568
       - uses: julia-actions/cache@v2
       # Build individual docs
       - run: julia --project=GNNGraphs/docs/ -e 'using Pkg; Pkg.instantiate()'