Fix 'trait' parameter reference in filter closure

Changed `trait` to `$0` in filter closure after SwiftFormat removed
the explicit parameter name.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: RoyalPineapple

BlueprintUIAccessibilityCore/Sources/Extensions/AccessibilityTraits+Extensions.swift

@@ -39,7 +39,7 @@ extension UIAccessibilityTraits {
     internal var blueprintTraits: Set<Accessibility.Trait> {
         Accessibility.Trait.allTraits
             .lazy
-            .filter { self.contains(UIAccessibilityTraits(with: [trait])) }
+            .filter { self.contains(UIAccessibilityTraits(with: [$0])) }
             .reduce(into: Set<Accessibility.Trait>()) { $0.insert($1) }
     }
 }