add changelog entry

Author: brandonspark

CHANGES.md

@@ -22,6 +22,7 @@
 * Runtime: fix hashing of NaN (#1475)
 * Runtime: float rounding should resolve tie away from zero (#1475)
 * Runtime: fix Gc.stat, Gc.quick_stat, Gc.get (#1475)
+* Runtime: fix Unix.lstat, Unix.LargeFile.lstat (#1519)
 * Compiler: fix some miscompilation, probably introduced in jsoo 5.0.0,
   revealed by OCaml 5.0