update transient benchmark

Author: puredanger

content/reference/transients.adoc

@@ -60,9 +60,9 @@ Here's a very typical example, some code that builds up a vector for return, all
       (recur (inc i) (conj! v i))
       (persistent! v))))
 
-;; benchmarked (Java 1.8, Clojure 1.7)
-(def v (vrange 1000000))    ;; 73.7 ms
-(def v2 (vrange2 1000000))  ;; 19.7 ms
+;; benchmarked (Java 25, Clojure 1.12)
+(def v (vrange 1000000))    ;; 8.4 ms
+(def v2 (vrange2 1000000))  ;; 5.5 ms
 ----
 Oh, yeah, _**transients are fast!**_