Add 'v2.0.0-beta.52' CHANGELOG entry.

Author: ewbankkit

CHANGELOG.md

@@ -1,13 +1,15 @@
 <!-- markdownlint-disable single-title -->
 # v2.0.0 (Unreleased)
 
+# v2.0.0-beta.52 (2024-04-11)
+
 BUG FIXES
 
 * Updates dependencies.
 
 ENHANCEMENTS
 
-* Adds `MaxBackoff` parameter to configure the maximum backoff delay that is allowed to occur between retrying a failed request
+* Adds `MaxBackoff` parameter to configure the maximum backoff delay that is allowed to occur between retrying a failed request ([#1011](https://github.com/hashicorp/aws-sdk-go-base/pull/1011))
 
 # v2.0.0-beta.51 (2024-04-04)