CI: get back PowerPC wheels

.github/workflows/wheels.yml

@@ -45,9 +45,38 @@ jobs:
           name: wheels-${{ matrix.name }}
           path: ./wheelhouse/*.whl
 
+  build_wheels_ppc:
+    name: Build wheels for linux-ppc
+    runs-on: ubuntu-24.04
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - uses: docker/setup-qemu-action@v3
+        with:
+          platforms: linux/ppc64le
+
+      - name: Install cibuildwheel
+        run: python -m pip install cibuildwheel==2.22.0
+
+      - name: Build wheels
+        run: python -m cibuildwheel --output-dir wheelhouse
+        env:
+          CIBW_ARCHS: ppc64le
+          CIBW_ENVIRONMENT: LIBSSH2_VERSION=1.11.1 LIBGIT2_VERSION=1.9.0 LIBGIT2=/project/ci
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: wheels-linux-ppc
+          path: ./wheelhouse/*.whl
+
   pypi:
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
-    needs: [build_wheels]
+    needs: [build_wheels, build_wheels_ppc]
     runs-on: ubuntu-24.04
 
     steps: