Update release script

Author: proux01

.github/workflows/main.yml

@@ -58,7 +58,7 @@ jobs:
           name: Hierarchy Builder ${{ github.ref }}
 
       - name: Use OCaml 4.14.x
-        uses: avsm/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: 4.14.x
           opam-local-packages: |