fixup! Rewrite build_win.ps1 in Bash

Author: cameel

scripts/ci/build_win.sh

@@ -35,7 +35,7 @@ boost_dir=("${ROOTDIR}/deps/boost/lib/cmake/Boost-"*)
     -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded \
     -DCMAKE_INSTALL_PREFIX="${ROOTDIR}/uploads/" \
     ..
-msbuild solidity.sln \
+MSBuild.exe solidity.sln \
     "/p:Configuration=Release" \
     "/m:10" \
     "/v:minimal"