Fix casks with `depends_on` that reference pre-Yosemite

[vitorgalvao]

If you get an error of the type Error: Cask 'hex-fiend-beta' definition is invalid: invalid 'depends_on macos' value: ":lion", where hex-fiend-beta can be any cask name, and :lion any macOS release name, run the following command:

/usr/bin/find "$(brew --prefix)/Caskroom/"*'/.metadata' -type f -name '*.rb' -print0 | /usr/bin/xargs -0 /usr/bin/perl -i -pe 's/depends_on macos: \[.*?\]//gsm;s/depends_on macos: .*//g'

This will remove all depends_on macos references of installed casks (where it doesn’t matter anymore anyway).

We should deal with these cases better in the future.

[glhrmv]

I was trying to uninstall the keka cask and I couldn't because of this error message. Thank you.

[ran-dall]

@vitorgalvao I remember that we had a conversation with @core-code about trying 'us' trying to support as many releases of macOS as possible. I now see what you were saying about the high maintenance overhead...

Maybe we should have it a harder requirement of only supporting the last two releases of macOS. I know it doesn't fix the issue, but it would mitigate it a bit by not having as many tags. 🏷

We should consider that we're talking ~31% of users; which are on something different from the last two releases of macOS.

[vitorgalvao]

@Rand-all This specific lack of support for pre-Maverick is now enforced in the core, with the release of Homebrew 2.0.0 (today!).

[ran-dall]

@vitorgalvao Yea I saw about an hour after I wrote that...haha! 👍 So should we start to delete the support off casks?

[reitermarkus]

I think we can safely remove depends_on: '>= :mavericks'.

[ran-dall]

@reitermarkus 🧞‍♂️It shall be done, then...

[brianbrownton]

#58460