ioctl update not working properly for masOS

[dustinxie]

What version of iotex-core image (or code branch) are you using?

v1.14.2

What operating system and processor architecture are you using?

macOS

What did you do? If possible, provide a recipe for reproducing the error.

run ioctl update

What did you expect to see?

it should download/install latest version

What did you see instead?

the actual command behind ioctl update is: curl --silent https://raw.githubusercontent.com/iotexproject/iotex-core/master/install-cli.sh | sh

if I run this, it will correctly download/install latest version via brew update