Fix release (again)

Author: bertrand-sb

.github/workflows/main.yml

@@ -12,8 +12,9 @@ jobs:
     steps:
       - name: Checkout the code
         uses: actions/checkout@v4
-        with:
-          fetch-tags: true
+      - name: Fetch tags
+        if: startsWith(github.ref, 'refs/tags/')  # https://github.com/actions/checkout/issues/1467
+        run: git fetch --tags
       - name: Set up OCaml
         # We can't use setup-ocaml@v3 yet because ocurl can't be installed with it for now
         # (curl-config issue).
@@ -53,8 +54,9 @@ jobs:
     steps:
       - name: Checkout the code
         uses: actions/checkout@v4
-        with:
-          fetch-tags: true
+      - name: Fetch tags
+        if: startsWith(github.ref, 'refs/tags/')  # https://github.com/actions/checkout/issues/1467
+        run: git fetch --tags
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Set build version