make branch task arg non-required
make branch task arg non-required

Signed-off-by: Eliya Sadan <ee72bd64a89bf65c610af864999dbed3edbad28e@gmail.com>

CloudSlang/cloud-slang,CloudSlang/cloud-slang,CloudSlang/cloud-slang,jrosadohp/cloud-slang,narry/cloud-slang,CloudSlang/cloud-slang,jrosadohp/cloud-slang,narry/cloud-slang