Add Support for build_args in scan Method for Custom xcodebuild Arguments

[Xopoko]

Close https://github.com/manicmaniac/danger-periphery/issues/231

Key Changes:

• New Argument: Added build_args to the scan method, allowing users to specify arguments for xcodebuild.
• Handling Arguments: If build_args is provided, these arguments are appended to the command after --, following the standard convention for passing additional arguments to xcodebuild.

Example Usage:

periphery.scan(
  config: '.periphery.yml', 
  project: 'MyProject.xcworkspace', 
  build_args: " -destination 'platform=iOS Simulator,name=iPhone 15 Pro Max' DISABLE_SWIFTLINT=YES"
)

Please review the changes, and I look forward to your feedback!

Thank you!

[manicmaniac]

Don't mind the failing CI job. I think it is due to my misconfiguration.

• ✅ I ran rspec and confirmed it passes
• ✅ I found some Rubocop warnings but it's okay, I will fix them later