bump multiple dependencies

[jsvd]

I've confirmed the plugin still works with the following configuration:

input {
  azure_event_hubs {
    event_hub_connections => ["Endpoint=sb://XXX-azh.servicebus.windows.net/;SharedAccessKeyName=myentity;SharedAccessKey=XXXXX=;EntityPath=myentity"]
    decorate_events => true
    storage_connection => "DefaultEndpointsProtocol=https;AccountName=eventhubstesting;AccountKey=XXXXXX/YYYYYYYY==;EndpointSuffix=core.windows.net"
  }
}
output { stdout {} }

Using two logstashes I confirmed only 1 instance of Logstash receives any given message.

[jsvd]

I've reverted the changes to the test dependencies and started a draft PR to track that work separately: #100

[robbavey]

LGTM