False positive closure_spacing with only comment inside

[Igor-Palaguta]

New Issue Checklist

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

Describe the bug

closure_spacing is fired when closure contains only comment

Complete output when running SwiftLint, including the stack trace and command used

$ swiftlint lint

warning: Closure Spacing Violation: Closure expressions should have a single space inside each brace. (closure_spacing)

Environment

• SwiftLint version (run swiftlint version to be sure)? 0.50.0
• Installation method used (Homebrew, CocoaPods, building from source, etc)? Cocoapods
• Paste your configuration file:

opt_in_rules:
  - closure_spacing

• Are you using nested configurations?
  no
• Which Xcode version are you using (check xcodebuild -version)?
  Xcode 14.0
  Build version 14A309
• Do you have a sample that shows the issue? Run echo "let test1 = func1(arg: { /* do nothing */ })" | swiftlint lint --no-cache --use-stdin --enable-all-rules
  to quickly test if your example is really demonstrating the issue. If your example is more
  complex, you can use swiftlint lint --path [file here] --no-cache --enable-all-rules.

// This triggers a violation:
let test1 = func1(arg: { /* do nothing */ })
let test2 = func1 { /* do nothing */ }

[jpsim]

Fixed in #4584