Change log for RESOLVED_CHECKSUM_SPECS bug fix. (#4622)

Author: gosar

.changes/next-release/bugfix-AWSSDKforJavav2-86ff2d3.json

@@ -0,0 +1,6 @@
+{
+ "type": "bugfix",
+ "category": "AWS SDK for Java v2",
+ "contributor": "",
+ "description": "Removed mapping for RESOLVED_CHECKSUM_SPECS execution attribute that was causing intermittent failures for S3 operations with checksums since 2.21.0 release. The bug can cause `java.lang.NullPointerException: Cannot read field \"value\" because \"s1\" is null` exceptions, as reported in https://github.com/aws/aws-sdk-java-v2/issues/4608."
+}