Add extra change note entry

Author: lcartey

change_notes/2024-12-08-identifier-hiding.md

@@ -2,3 +2,6 @@
    - Improved evaluation performance.
    - Addressed false negatives where nested loops used the same variable name.
    - Exclude cases where a variable declared in a lambda expression shadowed a globa or namespace variable that did not appear in the same translation unit.
+ - `RULE-5-3` - `IdentifierHidingC.ql`:
+   - Improved evaluation performance.
+   - Addressed false negatives where nested loops used the same variable name.