fix mistake in the Python change-note

Co-authored-by: Taus <[email protected]>

Author: erik-krogh

python/ql/lib/change-notes/2024-09-03-outdated-deprecations.md

@@ -4,6 +4,6 @@ category: breaking
 * Deleted the deprecated `explorationLimit` predicate from `DataFlow::Configuration`, use `FlowExploration<explorationLimit>` instead.
 * Deleted the deprecated `semmle.python.RegexTreeView` module, use `semmle.python.regexp.RegexTreeView` instead.
 * Deleted the deprecated `RegexString` class from  `regex.qll`.
-* Deleted the deprecated `Regex` class, use `Regex` instead.
+* Deleted the deprecated `Regex` class, use `RegExp` instead.
 * Deleted the deprecated `semmle/python/security/SQL.qll` file.
 * Deleted the deprecated `useSSL` predicates from the LDAP libraries, use `useSsl` instead.