git-artifacts(arm64): avoid hard-linking the dashed built-ins

The archive and MinGit variants really get bloated because they handle
those as straight copies instead of hard-links.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

.github/workflows/git-artifacts.yml

@@ -292,7 +292,7 @@ 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"
+          -DCMAKE_INSTALL_PREFIX="`pwd`/git-arm64" -DSKIP_DASHED_BUILT_INS=ON
       - name: MSBuild
         run: msbuild git.sln -property:Configuration=Release
       - name: Link the Git executables