Update changelog

Author: chemamartinez

packages/cisco_secure_email_gateway/changelog.yml

@@ -1,4 +1,12 @@
 # newer versions go on top
+- version: "1.21.1"
+ changes:
+ - description: Fix handling of Consolidated Events when end and start time are missing.
+ type: bugfix
+ link: https://github.com/elastic/integrations/pull/8932
+ - description: Fix handling of AMP logs when filenames contain a comma.
+ type: bugfix
+ link: https://github.com/elastic/integrations/pull/8932
 - version: "1.21.0"
  changes:
  - description: Handle and record log host origin filepaths.