macOS code signing fails due to finding wrong codesign on PATH

[dbrnz]

• Electron-Builder Version: 24.11.0

• Node Version: v21.5.0

• Electron Version: 28.1.3
• Electron Type (current, beta, nightly): current

• Target: macOS

Homebrew's miniforge package includes a codesign:

$ which codesign
/opt/homebrew/Caskroom/miniforge/base/bin/codesign

Unsurprising this fails when electron-builder uses it for code signing. The error message is:

The following arguments were not expected: --options --timestamp

A fix is to adjust PATH so that /usr/bin is ahead of /opt/homebrew/Caskroom/miniforge/base/bin.