github: remove dependency of python wheel's on dune

Ubuntu's dune is way too old for the version generally used. On top of that the
command doesn't fail when this happens, making the setup brittle. Instead write
the version variable to config.mk and run make.

Signed-off-by: Pau Ruiz Safont <[email protected]>

Author: psafont

.github/workflows/release.yml

@@ -20,13 +20,11 @@ jobs:
           python-version: "3.x"
 
       - name: Install build dependencies
-        run: |
-          pip install build
-          sudo apt-get install ocaml ocaml-dune libfindlib-ocaml-dev libdune-ocaml-dev libcmdliner-ocaml-dev
+        run: pip install build
 
       - name: Generate python package for XenAPI
         run: |
-          ./configure --xapi_version=${{ github.ref_name }}
+          echo "export XAPI_VERSION=${{ github.ref_name }}" > config.mk
           make python
 
       - name: Store python distribution artifacts