Add back qemu action, add 32bit windows

.github/workflows/pythonwheels.yml

@@ -31,12 +31,15 @@ jobs:
         if: "matrix.os != 'windows-latest'"
       - name: Run test suite
         run: python -m unittest dulwich.tests.test_suite
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+        if: "matrix.os == 'ubuntu-latest'"
       - name: Build wheels
         run: python -m cibuildwheel --output-dir wheelhouse
         env:
           CIBW_ARCHS_LINUX: x86_64 aarch64
           CIBW_ARCHS_MACOS: x86_64 arm64 universal2
-          CIBW_ARCHS_WINDOWS: AMD64
+          CIBW_ARCHS_WINDOWS: AMD64 x86
       - name: Upload wheels
         uses: actions/upload-artifact@v3
         with: