Update .github/workflows/build.yml

Co-authored-by: Sora Morimoto <sora@morimoto.io>

Author: hhugo

.github/workflows/build.yml

@@ -84,7 +84,7 @@ jobs:
           node-version: lts/*
 
       - name: Set-up OCaml ${{ matrix.ocaml-compiler }}
-        uses: kit-ty-kate/setup-ocaml@win52
+        uses: ocaml/setup-ocaml@v3.0.0-alpha
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
           dune-cache: true