Update benchmark metadata

This commit updates the benchmark metadata in several example files. The
benchmark runs and repeat counts have been slightly adjusted due to
optimizations or minor variations in execution.

examples/macro_financial.myc

@@ -1,5 +1,5 @@
-;; Benchmark: 462ns
-;; Benchmark-Repeat: 4348
+;; Benchmark: 354ns
+;; Benchmark-Repeat: 5640
 ;; Financial DSL Macro example
 ;; Demonstrates generating complex records from simple parameters.
 ;; Output: {:price 100, :size 2, :total 200}