add installing makensis in release script

[medyagh]

 -r installers/windows/ out/windows_tmp
cp -r LICENSE out/windows_tmp/LICENSE
awk 'sub("$", "\r")' out/windows_tmp/LICENSE > out/windows_tmp/LICENSE.txt
sed -E -i 's/--VERSION_MAJOR--/'1'/g' out/windows_tmp/minikube.nsi
sed -E -i 's/--VERSION_MINOR--/'35'/g' out/windows_tmp/minikube.nsi
sed -E -i 's/--VERSION_BUILD--/'0'/g' out/windows_tmp/minikube.nsi
sed -E -i 's/--INSTALL_SIZE--/'122892'/g' out/windows_tmp/minikube.nsi
cp out/minikube-windows-amd64.exe out/windows_tmp/minikube.exe
fakeroot dpkg-deb --build /tmp/tmp.KAqnzTVh9Y.minikube_1.35.0-amd64-deb out/minikube_1.35.0-0_amd64.deb
makensis out/windows_tmp/minikube.nsi
make: makensis: Command not found
make: *** [Makefile:647: out/minikube-installer.exe] Error 127
make: *** Waiting for unfinished jobs....
dpkg-deb: building package 'minikube' in 'out/minikube_1.35.0-0_amd64.deb'.
out/docker-machine-driver-hyperkit

I installed it manually using this command:
sudo apt install nsis