Prepare release 1.2.0 (#314)

Author: kevinwcyu

CHANGELOG.md

@@ -2,6 +2,16 @@
 
 All notable changes to this project will be documented in this file.
 
+## 1.2.0
+
+- Add clusterId dimension to AWS/ElastiCache namespace in [#305](https://github.com/grafana/grafana-aws-sdk/pull/305)
+- Bump github.com/stretchr/testify from 1.10.0 to 1.11.0 in [#312](https://github.com/grafana/grafana-aws-sdk/pull/312)
+- Bump github.com/aws/aws-sdk-go-v2/config from 1.31.0 to 1.31.2 in [#308](https://github.com/grafana/grafana-aws-sdk/pull/308)
+- Bump github.com/aws/aws-sdk-go-v2/config from 1.30.3 to 1.31.0 in [#304](https://github.com/grafana/grafana-aws-sdk/pull/304)
+- Bump github.com/aws/aws-sdk-go-v2/service/sts from 1.37.0 to 1.37.1 in [#306](https://github.com/grafana/grafana-aws-sdk/pull/306)
+- Bump github.com/aws/aws-sdk-go-v2/credentials from 1.18.3 to 1.18.4 in [#301](https://github.com/grafana/grafana-aws-sdk/pull/301)
+- Bump github.com/aws/aws-sdk-go-v2/service/sts from 1.36.0 to 1.37.0 in [#303](https://github.com/grafana/grafana-aws-sdk/pull/303)
+
 ## 1.1.1
 
 - Stop automatically setting us-gov endpoints as fips in [#302](https://github.com/grafana/grafana-aws-sdk/pull/302)