chore: release 0.21.0-beta

Author: aws-sdk-kotlin-ci

.changes/43600871-3596-4a3b-b3c5-61f33c21dee0.json

@@ -1,5 +1,13 @@
 # Changelog
 
+## [0.21.0-beta] - 02/24/2023
+
+### Features
+* Sync AWS service models and **smithy-kotlin** version
+
+### Miscellaneous
+* Refactor: move CachedCredentialsProvider and CredentialsProviderChain to smithy-kotlin under aws.smithy.kotlin.runtime.auth.awscredentials package
+
 ## [0.20.3-beta] - 02/16/2023
 
 ### Features

.changes/8b765420-8b59-4c59-8279-34e6009a3c46.json

@@ -7,7 +7,7 @@ kotlin.mpp.enableCompatibilityMetadataVariant=true
 org.gradle.jvmargs=-Xmx6g -XX:MaxMetaspaceSize=2G
 
 # sdk
-sdkVersion=0.21.0-SNAPSHOT
+sdkVersion=0.21.0-beta
 
 # codegen
 smithyVersion=1.26.1
@@ -39,4 +39,4 @@ mockkVersion=1.13.3
 slf4jVersion=2.0.6
 
 # dokka config (values specified at build-time as needed)
-smithyKotlinDocBaseUrl=https://sdk.amazonaws.com/kotlin/api/smithy-kotlin/api/$smithyKotlinVersion/
+smithyKotlinDocBaseUrl=https://sdk.amazonaws.com/kotlin/api/smithy-kotlin/api/$smithyKotlinVersion/