[maven-release-plugin] prepare release java-dogstatsd-client-2.0.9
[maven-release-plugin] prepare release java-dogstatsd-client-2.0.9

lkesteloot/java-dogstatsd-client,DataDog/java-dogstatsd-client,vogelito/java-dogstatsd-client,DataDog/java-dogstatsd-client,larsga/java-dogstatsd-client,indeedeng/java-dogstatsd-client,mcpate/java-dogstatsd-client,jonsie/java-dogstatsd-client