Add drawpen to macOS software list

Author: feicong

macOS.md

@@ -293,7 +293,8 @@ brew install --cask wireshark charles reqable postman httpie 1password disk-dril
     microsoft-office google-chrome xmind localsend 010-editor wechat qq bilibili showyedge angry-ip-scanner \
     battery microsoft-auto-update viz pearcleaner pdf-expert hex-fiend cherry-studio claude cursor lulu \
     ios-app-signer motrix listen1 bit-slicer clash-verge-rev qingg logseq Snipaste licecap drawio syncthing \
-    db-browser-for-sqlite macs-fan-control keyboardcleantool karabiner-elements pika gemini-cli Shottr pixel-picker
+    db-browser-for-sqlite macs-fan-control keyboardcleantool karabiner-elements pika gemini-cli Shottr pixel-picker \
+    drawpen
 
 brew install alienator88/homebrew-cask/sentinel-app
 ```