tests/lcitool: Install mingw-w64-tools for the Windows cross-builds

tests/lcitool: Install mingw-w64-tools for the Windows cross-builds

Beside g++ we also need the mingw-w64-tools for properly building
the code in qga/vss-win32/ , so let's install that package now, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20240601070543.37786-5-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240603175328.3823123-11-alex.bennee@linaro.org>