Fix Autogenerated Samples

[daniel-sanche]

The log tailing samples (synchronous, asynchronous) have an issue where the object paths are out of date (logging_v2.LoggingServiceV2Client() should be logging_v2.services.logging_service_v2.LoggingServiceV2Client(), etc)

We should check the autogenerated samples to make sure they are all tested

[Ripeey]

Also logging_v2.types.TailLogEntriesRequest, but it still gives me no response is there working example of tailing logs?

[dlobsinger]

Is there any update on a working sample of using tail_log_entries?