chore: update changelog

Signed-off-by: Achim Christ <achim.christ@sva.de>

Author: acch

CHANGELOG.md

@@ -4,6 +4,9 @@ DOCUMENTATION:
 
 - Corrected `aws` to `aws_lambda` in provider config.
 
+BUG FIXES:
+
+- **netapp-ontap_security_account**: unable to unlock existing `security_account` resource ([#499](https://github.com/NetApp/terraform-provider-netapp-ontap/issues/499))
 
 # 2.2.0 (2025-05-01)