Update iterm2 from 3.4.17 to 3.4.18 (#135794)
Update iterm2 from 3.4.17 to 3.4.18 (#135794)

* Update iterm2 from 3.4.17 to 3.4.18

* Update iterm2.rb

* Update iterm2.rb

Co-authored-by: Miccal Matthews <a53b0df86fcdccc56e90f3003dd9230c49f140c6@gmail.com>
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