refactor: Remove unused temporary var in switch expression

Author: linkdotnet

src/bunit.web/Rendering/Internal/Htmlizer.cs

@@ -261,7 +261,7 @@ private static int RenderAttributes(
 					result.Append(':');
 					result.Append(nameParts[1]);
 					break;
-				case bool flag and true:
+				case true:
 					result.Append(' ');
 					result.Append(frame.AttributeName);
 					break;