[Bug]: Homebrew tap needs an update

Description

macOS 27 gives an error when running brew update:

Warning: Calling string comparison format for `depends_on macos:` is deprecated! Use `depends_on macos: :big_sur` instead.
Please report this issue to the opencoworkai/homebrew-tap tap (not Homebrew/* repositories), or even better, submit a PR to fix it:
  /opt/homebrew/Library/Taps/opencoworkai/homebrew-tap/Casks/open-codesign.rb:25

Steps to reproduce

1. Install macOS 27 beta
2. Run brew update

Expected behavior

Homebrew shouldn't flag the tap anymore as faulty.

Actual behavior

brew currently prints the above statement multiple times, which is annoying and noisy.

open-codesign version

0.2.1

Platform

macOS

OS version

27 beta 4

Model provider (if relevant)

No response

Error code

No response

Diagnostics bundle

No response

Logs