update setup-ocaml

Author: tsnobip

.github/workflows/ci.yml

@@ -140,20 +140,18 @@ jobs:
           chmod +x _build/install/default/bin/*
 
       - name: Use OCaml ${{matrix.ocaml_compiler}}
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3.2.5
         if: matrix.os != 'windows-latest'
         with:
           ocaml-compiler: ${{matrix.ocaml_compiler}}
           opam-pin: false
-          opam-depext: false
 
       - name: Use OCaml ${{matrix.ocaml_compiler}} (Win)
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3.2.5
         if: matrix.os == 'windows-latest'
         with:
           ocaml-compiler: ${{matrix.ocaml_compiler}}
           opam-pin: false
-          opam-depext: false
           opam-repositories: |
             opam-repository-mingw: https://github.com/ocaml-opam/opam-repository-mingw.git#sunset
             default: https://github.com/ocaml/opam-repository.git