SwiftLint format with Swift 6.1 trailing commas feature changes closing parenthesis indentation

New Issue Checklist

• I've Updated SwiftLint to the latest version.
• I've searched for existing GitHub issues.

Bug Description

When using the new Swift 6.1 support for trailing commas, SwiftLint indents the closing parenthesis rather than keep it at the expected non-indented level.

// with trailing comma
let a = CGRect(
    x: 0,
    y: 0,
    width: 100,
    height: 100,
    )

// without trailing comma
let a = CGRect(
    x: 0,
    y: 0,
    width: 100,
    height: 100
)

Environment

• SwiftLint version 0.59.0
• Xcode version (n/a)

Reproduce the formatting shown in the issue with SwiftLint 0.59.0, comparing calls with and without a trailing comma. Trace the formatter behavior responsible for the closing-parenthesis indentation and add a regression check; done means the trailing-comma form keeps the closing parenthesis at the non-indented level.