Bump ocaml/setup-ocaml from 2 to 3

Bumps [ocaml/setup-ocaml](https://github.com/ocaml/setup-ocaml) from 2 to 3.
- [Release notes](https://github.com/ocaml/setup-ocaml/releases)
- [Changelog](https://github.com/ocaml/setup-ocaml/blob/master/CHANGELOG.md)
- [Commits](ocaml/setup-ocaml@v2...v3)

---
updated-dependencies:
- dependency-name: ocaml/setup-ocaml
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/coverage.yml

@@ -35,7 +35,7 @@ jobs:
           # otherwise setup-ocaml pins non-locked dependencies
           # https://github.com/ocaml/setup-ocaml/issues/166
           OPAMLOCKED: locked
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
           opam-depext-flags: --with-test # doesn't work (https://github.com/ocaml/opam/issues/5836)

.github/workflows/docs.yml

@@ -35,7 +35,7 @@ jobs:
           # otherwise setup-ocaml pins non-locked dependencies
           # https://github.com/ocaml/setup-ocaml/issues/166
           OPAMLOCKED: locked
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
 

.github/workflows/indentation.yml

@@ -25,7 +25,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set up OCaml ${{ matrix.ocaml-compiler }}
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
 

.github/workflows/locked.yml

@@ -37,7 +37,7 @@ jobs:
           # otherwise setup-ocaml pins non-locked dependencies
           # https://github.com/ocaml/setup-ocaml/issues/166
           OPAMLOCKED: locked
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
           opam-depext-flags: --with-test # doesn't work (https://github.com/ocaml/opam/issues/5836)
@@ -87,7 +87,7 @@ jobs:
           # otherwise setup-ocaml pins non-locked dependencies
           # https://github.com/ocaml/setup-ocaml/issues/166
           OPAMLOCKED: locked
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
           opam-depext-flags: --with-test # doesn't work (https://github.com/ocaml/opam/issues/5836)
@@ -132,7 +132,7 @@ jobs:
           # otherwise setup-ocaml pins non-locked dependencies
           # https://github.com/ocaml/setup-ocaml/issues/166
           OPAMLOCKED: locked
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
 

.github/workflows/unlocked.yml

@@ -45,7 +45,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up OCaml ${{ matrix.ocaml-compiler }}
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
           opam-depext-flags: --with-test # doesn't work (https://github.com/ocaml/opam/issues/5836)
@@ -106,7 +106,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up OCaml ${{ matrix.ocaml-compiler }}
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
           opam-depext-flags: --with-test # doesn't work (https://github.com/ocaml/opam/issues/5836)
@@ -199,7 +199,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up OCaml ${{ matrix.ocaml-compiler }}
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
           opam-depext-flags: --with-test # doesn't work (https://github.com/ocaml/opam/issues/5836)