Update CHANGELOG.md

Author: brandonc

CHANGELOG.md

@@ -3,6 +3,7 @@
 BUG FIXES
 * `terraform test`: Fix performance issues when using provisioners within configs being tested. ([#34026](https://github.com/hashicorp/terraform/pull/34026))
 * Fix interoperability issues between v1.6 series and earlier series by removing variable validations from the state file ([#34058](https://github.com/hashicorp/terraform/pull/34058)).
+* cloud: Fixes panic in underlying go-tfe SDK package, caused when saving state returns certain types of API errors ([#34074](https://github.com/hashicorp/terraform/pull/34074)).
 
 ## 1.6.1 (October 10, 2023)