Bump ocaml/setup-ocaml from 2 to 3 (#1925)

* Bump ocaml/setup-ocaml from 2 to 3

Dependabot couldn't find the original pull request head commit, 1d1d3f8.

* revert to setup-ocaml@v2 on Windows

v3 doesn't seem to be working yet

---------

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Jason Gross <[email protected]>

Author: dependabot[bot]

.github/workflows/coq-docker.yml

@@ -208,7 +208,7 @@ jobs:
       with:
         submodules: recursive
     - name: Set up OCaml
-      uses: ocaml/setup-ocaml@v2
+      uses: ocaml/setup-ocaml@v3
       with:
         ocaml-compiler: ${{ matrix.ocaml-compiler }}
     - name: opam install deps
@@ -257,7 +257,7 @@ jobs:
       with:
         submodules: recursive
     - name: Set up OCaml
-      uses: ocaml/setup-ocaml@v2
+      uses: ocaml/setup-ocaml@v3
       with:
         ocaml-compiler: ${{ matrix.ocaml-compiler }}
     - name: echo build params

.github/workflows/coq-macos.yml

@@ -45,7 +45,7 @@ jobs:
       with:
         submodules: recursive
     - name: Set up OCaml
-      uses: ocaml/setup-ocaml@v2
+      uses: ocaml/setup-ocaml@v3
       with:
         ocaml-compiler: ${{ matrix.ocaml-compiler }}
 

.github/workflows/coq-opam-package.yml

@@ -43,7 +43,7 @@ jobs:
 
     steps:
     - name: Set up OCaml
-      uses: ocaml/setup-ocaml@v2
+      uses: ocaml/setup-ocaml@v3
       with:
         ocaml-compiler: ${{ matrix.os.ocaml-compiler }}
         opam-repositories: |-