Update changelog.md

Author: steveRoll-git

changelog.md

@@ -8,6 +8,7 @@
 * `FIX` reimplement section `luals.config` in file doc.json
 * `FIX` incorrect file names in file doc.json
 * `FIX` remove extra `./` path prefix in the check report when using `--check=.`
+* `FIX` correct lua version of `math.ult` and `math.type`
 
 ## 3.13.6
 `2025-2-6`