【Mac M1】「flutter doctor」実行時の「CocoaPods not installed.」の解決法

[!] Android toolchain - develop for Android devices (Android SDK version
   32.1.0-rc1)
   ✗ cmdline-tools component is missing
     Run `path/to/sdkmanager --install "cmdline-tools;latest"`
     See https://developer.android.com/studio/command-line for more details.
   ✗ Android license status unknown.
     Run `flutter doctor --android-licenses` to accept the SDK licenses.
     See https://flutter.dev/docs/get-started/install/macos#android-setup for
     more details.
[✗] Xcode - develop for iOS and macOS
   ✗ Xcode installation is incomplete; a full installation is necessary for iOS
     development.
     Download at: https://developer.apple.com/xcode/download/
     Or install Xcode via the App Store.
     Once installed, run:
       sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
       sudo xcodebuild -runFirstLaunch
   ✗ CocoaPods not installed.　　　　　← ここ！
       CocoaPods is used to retrieve the iOS and macOS platform side's plugin
       code that responds to your plugin usage on the Dart side.
       Without CocoaPods, plugins will not work on iOS or macOS.
       For more info, see https://flutter.dev/platform-plugins
     To install see
     https://guides.cocoapods.org/using/getting-started.html#installation for
     instructions.