fix(shorebird_cli): remove lookup of nonexistent argument

[bryanoltman]

Description

Fixes a crash when running shorebird release android:

$ shorebird release android
✓ Building release (4.9s)
✓ Fetching apps (0.2s)
✓ Detecting release version (0.4s)
Unhandled exception:
Invalid argument(s): Could not find an option named "platform".
#0      ArgResults.[] (package:args/src/arg_results.dart:65:7)
#1      ReleaseAndroidCommand.run (package:shorebird_cli/src/commands/release/release_android_command.dart:147:29)
<asynchronous suspension>
#2      CommandRunner.runCommand (package:args/command_runner.dart:212:13)
<asynchronous suspension>
#3      ShorebirdCliCommandRunner.runCommand (package:shorebird_cli/src/command_runner.dart:132:18)
<asynchronous suspension>
#4      ShorebirdCliCommandRunner.run (package:shorebird_cli/src/command_runner.dart:93:14)
<asynchronous suspension>
#5      main (file:///C:/Users/bryan/Documents/shorebirdtech/_shorebird/shorebird/packages/shorebird_cli/bin/shorebird.dart:6:24)
<asynchronous suspension>

Type of Change

• ✨ New feature (non-breaking change which adds functionality)
• 🛠️ Bug fix (non-breaking change which fixes an issue)
• ❌ Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Code refactor
• ✅ Build configuration change
• 📝 Documentation
• 🗑️ Chore

[felangel]

Thanks for catching and fixing this!

[bryanoltman]

The shorebird release command is also not working as-is - it seems like commands with subcommands "branch" commands and can't be run themselves (see https://pub.dev/documentation/args/latest/command_runner/Command-class.html). Seems like we may need to deprecate shorebird release sooner than we thought 🙃

[felangel]

Hmm I thought it was still possible 🤔

Will look into it in a few mins