fix package build

Author: felipenoris

.github/workflows/ci.yml

@@ -60,7 +60,8 @@ jobs:
           julia --project=docs -e '
             using Pkg
             Pkg.develop(PackageSpec(path=pwd()))
-            Pkg.instantiate()'
+            Pkg.instantiate()
+            Pkg.build()'
       - run: julia --project=docs docs/make.jl
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}