Bump the cloud plugin version to 0.4.1
Bump the cloud plugin version to 0.4.1

iantalarico/google-fluentd,GoogleCloudPlatform/google-fluentd,iantalarico/google-fluentd,GoogleCloudPlatform/google-fluentd,GoogleCloudPlatform/google-fluentd,iantalarico/google-fluentd