Extensions.AWSXRay Changelog update for v1.2.0 release (#364)

* Extensions.AWSXRay Changelog update

* Fix linting in markdown

Author: srprash

src/OpenTelemetry.Contrib.Extensions.AWSXRay/CHANGELOG.md

@@ -1,5 +1,14 @@
 # Changelog - OpenTelemetry.Contrib.Extensions.AWSXRay
 
+## 1.2.0 [2022-May-18]
+
+* Enhancement - AWSEKSResourceDetector - Validate ClusterName/ContainerID
+  independently before adding it to the resource
+  ([#205](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/205))
+* Fix - AWSEKSResourceDetector fails to detect resources due to exception
+  "The SSL connection could not be established"
+  ([#208](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/208))
+
 ## 1.1.0 [2021-Sept-20]
 
 * Added AWS resource detectors ([#149](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/149))