How not to update every package in existence, break your local environment, and spend the afternoon dealing with things you did not want to deal with when installing a package with Homebrew
Friendly reminder that you can disable Homebrew's default auto update behaviour with HOMEBREW_NO_AUTO_UPDATE=1.
HOMEBREW_NO_AUTO_UPDATE=1 brew install git-secret
If you want to set and forget the setting, add it to your ~/.bashrc or ~/.zshrc.
export HOMEBREW_NO_AUTO_UPDATE=1