Auto-update issue with installing miniforge with homebrew

[qgwyspks]

Solution to issue cannot be found in the documentation.

• I checked the documentation.

Issue

Install miniforge with homebrew brew install miniforge. However, the miniforge is in Casks. I can't use the pin command which can only be used for formula to disable its auto-update.
When I try for daily-update, miniforge will update and upgrade, which causes previous environments and packages missing.

brew update && brew upgrade

So how can I disable its auto-update? Or rather move it from cask to formula.

Installed packages

nan

Environment info

active environment : base
    active env location : /opt/homebrew/Caskroom/miniforge/base
            shell level : 1
       user config file : /Users/wsk/.condarc
 populated config files : /opt/homebrew/Caskroom/miniforge/base/.condarc
                          /Users/wsk/.condarc
          conda version : 24.1.2
    conda-build version : not installed
         python version : 3.10.14.final.0
                 solver : libmamba (default)
       virtual packages : __archspec=1=m2
                          __conda=24.1.2=0
                          __osx=14.4.1=0
                          __unix=0=0
       base environment : /opt/homebrew/Caskroom/miniforge/base  (writable)
      conda av data dir : /opt/homebrew/Caskroom/miniforge/base/etc/conda
  conda av metadata url : None
           channel URLs : https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/osx-arm64
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/noarch
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r/osx-arm64
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r/noarch
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2/osx-arm64
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2/noarch
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/osx-arm64
                          https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/noarch
          package cache : /opt/homebrew/Caskroom/miniforge/base/pkgs
                          /Users/wsk/.conda/pkgs
       envs directories : /opt/homebrew/Caskroom/miniforge/base/envs
                          /Users/wsk/.conda/envs
               platform : osx-arm64
             user-agent : conda/24.1.2 requests/2.31.0 CPython/3.10.14 Darwin/23.4.0 OSX/14.4.1 solver/libmamba conda-libmamba-solver/24.1.0 libmambapy/1.5.7
                UID:GID : 501:20
             netrc file : None
           offline mode : False

[xhochy]

I think this question is better suited in the homebrew tracker as it asks for homebrew-specific commands.