Add stack trace cycle display revamp to NEWS.md (#59156)

Author: BioTurboNick

NEWS.md

@@ -75,6 +75,7 @@ Standard library changes
 #### REPL
 
 * The display of `AbstractChar`s in the main REPL mode now includes LaTeX input information like what is shown in help mode ([#58181]).
+* Display of repeated frames and cycles in stack traces has been improved by bracketing them in the trace and treating them consistently ([#55841]).
 
 #### Test