Update codeowners for utility and kubernetes packages (#454)

Author: ivanduplenskikh

.github/CODEOWNERS

@@ -19,14 +19,14 @@ common-npm-packages/ios-signing-common/          @microsoft/azure-pipelines-task
 
 common-npm-packages/java-common/                 @microsoft/azure-pipelines-tasks-and-agent  @tarunramsinghani @kelliejos
 
-common-npm-packages/kubernetes-common/           @nishubansal  @ds-ms
+common-npm-packages/kubernetes-common/           @microsoft/release-management-task-team @manolerazvan
 
 common-npm-packages/msbuildhelpers/              @microsoft/azure-pipelines-tasks-and-agent  @tarunramsinghani
 
 common-npm-packages/packaging-common/            @microsoft/azure-artifacts-packages
 
 common-npm-packages/securefiles-common/          @microsoft/azure-pipelines-tasks-and-agent  @microsoft/akvelon-build-task-team  @hashtagchris
 
-common-npm-packages/utility-common/              @nishubansal  @ds-ms
+common-npm-packages/utility-common/              @microsoft/azure-pipelines-tasks-and-agent  @tarunramsinghani
 
 common-npm-packages/webdeployment-common/        @microsoft/release-management-task-team @manolerazvan