Authenticating using a Token

Hi,

I am trying to use a token to create a producer but keep getting the following message
```
INFO ClientConnection:330 | [ -> ] Connected to broker
ERROR ClientConnection:388 | [ -> ] Handshake failed: certificate verify failed
INFO ClientConnection:1349 | [ -> ] Connection closed
ERROR ClientImpl:182 | Error Checking/Getting Partition Metadata while creating producer on persistent://[topic] -- 5
```

When I try to connect locally using a token, it seems to work however when I am running it in production, I am seeing the above messages. Therefore, not sure how to replicate it locally.

Is there a way to use the token or do I have to use the certification / private key approach when initializing the client:
`return new pulsar.Client({ ..., auth: { certificatePath: '', privateKeyPath: '' })

The report names no repository file or test. Start by comparing the local and production client initialization, focusing on the token setup and the certificatePath/privateKeyPath alternative, then trace the reported certificate verification failure. Done means establishing whether token authentication can create a producer in production without the handshake error.

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