Whats happend with mpv cask?

[sincorchetes]

Output of brew config

brew config
HOMEBREW_VERSION: 4.2.17
ORIGIN: https://github.com/Homebrew/brew
HEAD: 0476c2e5e4f02b409084553896340b2f4ab3352e
Last commit: 2 days ago
Core tap JSON: 08 Apr 15:35 UTC
Core cask tap JSON: 08 Apr 20:31 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_MAKE_JOBS: 8
Homebrew Ruby: 3.1.4 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.1.4/bin/ruby
CPU: octa-core 64-bit arm_firestorm_icestorm
Clang: 15.0.0 build 1500
Git: 2.39.3 => /Library/Developer/CommandLineTools/usr/bin/git
Curl: 8.4.0 => /usr/bin/curl
macOS: 14.4.1-arm64
CLT: 15.3.0.0.1.1708646388
Xcode: N/A
Rosetta 2: false

Output of brew doctor

brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: Some installed formulae are deprecated or disabled.
You should find replacements for the following formulae:
  cowsay

Description of issue

I just updated the brew database and I got this:

==> Downloading https://formulae.brew.sh/api/cask.jws.json
############################################################################################################################################################################################################################ 100.0%
Warning: Cask mpv was renamed to stolendata-mpv.

I got the info:

brew info stolendata-mpv
==> stolendata-mpv: 0.37.0
https://mpv.io/
/opt/homebrew/Caskroom/stolendata-mpv/0.37.0 (does not exist)
From: https://github.com/Homebrew/homebrew-cask/blob/HEAD/Casks/s/stolendata-mpv.rb
==> Name
mpv
==> Description
Media player based on MPlayer and mplayer2
==> Artifacts
mpv.app (App)
/Applications/mpv.app/Contents/MacOS/mpv (Binary)
documentation/man/mpv.1 (Manpage)
==> Analytics
install: 0 (30 days), 0 (90 days), 0 (365 days)

Relevant casks

mpv

[Bo98]

mpv.app was never "official". As seen at https://mpv.io/installation/, the build was unofficial one by a third party. This was confusing as calling the cask mpv made it sound official so it was renamed to make it clear which vendor it is from. In this case, we're taking the build from https://laboratory.stolendata.net/~djinn/mpv_osx/.

[mxalbert1996]

I'm not installing the mpv cask but I'm warned every time I run brew cleanup, which is a little bit annoying.
Is that the intended behavior? If so, is there any way I can suppress this warning?