update action with ocaml/setup-ocaml@v3

Author: belolourenco

.github/workflows/set-up-environment.yml

@@ -12,7 +12,7 @@ jobs:
     - name: Check out repository code
       uses: actions/checkout@v4
     - name: Use OCaml
-      uses: ocaml/setup-ocaml@v2
+      uses: ocaml/setup-ocaml@v3
       with:
         ocaml-compiler: 4.13.x
     - name: install tools with opam
@@ -77,4 +77,4 @@ jobs:
         cd $GITHUB_WORKSPACE
         echo "# Replay Status" > $GITHUB_STEP_SUMMARY
         echo "./test.sh"
-        ./test.sh
+        ./test.sh