homebrewを用いたPyMOLのインストールについて

新しくPCを購入し、homebrewを用いてPyMOLをインストールしようとしていますが、うまくいきません。
古いPC（macOS Mojave 10.14.6）でうまくいった方法だったのですが、解決策を教えて下さい。
以下、PCの情報やlogです。

macOS Monterey バージョン 12.0.1
iMac (Retina 5K, 27-inch, 2020)
プロセッサ　3.6 GHz 10コアIntel Core i9
メモリ　64 GB 2667 MHz DDR4

brew config
HOMEBREW_VERSION: 3.3.11
ORIGIN: https://github.com/Homebrew/brew
HEAD: 537036ab3627b65d71dfa920b98d43774f861dec
Last commit: 2 days ago
Core tap ORIGIN: https://github.com/Homebrew/homebrew-core
Core tap HEAD: 68defcb5dd3a1fe5ee5d3f18069e64e25e9ae2a2
Core tap last commit: 11 minutes ago
Core tap branch: master
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CASK_OPTS: []
HOMEBREW_CORE_GIT_REMOTE: https://github.com/Homebrew/homebrew-core
HOMEBREW_DISPLAY: /private/tmp/com.apple.launchd.YuA5ffyX5a/org.xquartz:0
HOMEBREW_MAKE_JOBS: 20
Homebrew Ruby: 2.6.8 => /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby
CPU: 20-core 64-bit cometlake
Clang: 13.0.0 build 1300
Git: 2.32.0 => /Library/Developer/CommandLineTools/usr/bin/git
Curl: 7.77.0 => /usr/bin/curl
macOS: 12.0.1-x86_64
CLT: 13.2.0.0.1.1637719136
Xcode: 13.2.1

brew update
Already up-to-date.

brew doctor
Your system is ready to brew.

brew install brewsci/bio/pymol
==> Downloading https://ghcr.io/v2/homebrew/core/icu4c/manifests/69.1
curl: (28) Failed to connect to ghcr.io port 443: Operation timed out
Warning: Problem : timeout. Will retry in 1 seconds. 3 retries left.
curl: (28) Failed to connect to ghcr.io port 443: Operation timed out# # ##
Warning: Problem : timeout. Will retry in 2 seconds. 2 retries left.
curl: (28) Failed to connect to ghcr.io port 443: Operation timed out
Warning: Problem : timeout. Will retry in 4 seconds. 1 retries left.
curl: (28) Failed to connect to ghcr.io port 443: Operation timed out