ci(): add HOST_CPU to CMake command

As mentioned in the Makefile and CMakeLists.txt: "When cross-compiling, define HOST_CPU as the canonical name of the CPU on which the built Git will run (for instance "x86_64")"

This commit sets the HOST_CPU variable since Git for Windows arm64 is cross-compiled from an amd64 host.

Signed-off-by: Dennis Ameling <dennis@dennisameling.com>

.github/workflows/git-artifacts.yml

@@ -291,7 +291,7 @@ jobs:
         run: |
           cmake `pwd`/contrib/buildsystems/ -DCMAKE_PREFIX_PATH=`pwd`/compat/vcbuild/vcpkg/installed/arm64-windows \
           -DNO_GETTEXT=YesPlease -DPERL_TESTS=OFF -DPYTHON_TESTS=OFF -DCURL_NO_CURL_CMAKE=ON -DCMAKE_GENERATOR_PLATFORM=arm64 -DVCPKG_ARCH=arm64-windows \
-          -DCMAKE_INSTALL_PREFIX="`pwd`/git-arm64" -DSKIP_DASHED_BUILT_INS=ON
+          -DCMAKE_INSTALL_PREFIX="`pwd`/git-arm64" -DSKIP_DASHED_BUILT_INS=ON -DHOST_CPU=arm64
       - name: MSBuild
         if: env.SKIP != 'true'
         run: msbuild git.sln -property:Configuration=Release