Change NEWS to 1.13 and move gcsafe note to HISTORY. (#57679)

I also added the PR number, which is not in the release-1.12 NEWS. Do
those changes typically get backported?

Author: christiangnrd

HISTORY.md

@@ -25,6 +25,7 @@ New language features
 * Support for Unicode 16 ([#56925]).
 * `Threads.@spawn` now takes a `:samepool` argument to specify the same threadpool as the caller.
   `Threads.@spawn :samepool foo()` which is shorthand for `Threads.@spawn Threads.threadpool() foo()` ([#57109]).
+* The `@ccall` macro can now take a `gc_safe` argument, that if set to true allows the runtime to run garbage collection concurrently to the `ccall` ([#49933]).
 
 Language changes
 ----------------

NEWS.md

@@ -1,11 +1,9 @@
-Julia v1.12 Release Notes
+Julia v1.13 Release Notes
 ========================
 
 New language features
 ---------------------
 
-* The `@ccall` macro can now take a `gc_safe` argument, that if set to true allows the runtime to run garbage collection concurrently to the `ccall`
-
 Language changes
 ----------------