CodeMagic 🪄 How to Update "build_number" automatically on CodeMagic

I resolved the issue that CodeMagic didn't automatically update the build number of iOS building after I've deployed my Flutter code to GitHub.

How to Resolve

go to the tab,
build > build arguments

and type
--build-number=$(($BUILD_NUMBER))

At the Xcode > Info.plist,

check here.
key CFBundleShortVersionString
key CFBundleVersion

these both string to be $(FLUTTER_BUILD_NAME)