Update up-client-zenoh-rust with up-spec 1.5.7

[evshary]

Since up-rust is upgraded to up-spec 1.5.7 in eclipse-uprotocol/up-rust#66, the PR is to keep the code updated.
I'll update https://github.com/eclipse-uprotocol/up-zenoh-example-rust later

[evshary]

@PLeVasseur I think the PR is ready. There are a lot of changes, but it should not affect your uStreamer implementation since I didn't change the API (except removing RpcServer)

Here are the modifications:

• Upgrade to the latest up-rust to match up-spec 1.5.7
• Update the way of error logging
• Support initializing the constructor with UUri (will generate randomly if we don't assign it)
• Reorganize the test code

Hope it's compatible with your uStreamer implementation

[evshary]

@PLeVasseur I think the PR is ready for your second review 😄

[PLeVasseur]

@PLeVasseur I think the PR is ready for your second review 😄

Finished round 2 -- looking good 🙂

Had one item that I think would be good to check on:
#21 (comment)

[evshary]

@PLeVasseur Thank you! Let me know if you have any other comments.

[PLeVasseur]

@PLeVasseur Thank you! Let me know if you have any other comments.

Hey @evshary -- I missed this tiny nitpick which I think gives symmetry. Could you take a look?

[evshary]

@PLeVasseur Done and your comment also reminds me to remove some TODO in code since eclipse-uprotocol/up-rust#75 is merged

[PLeVasseur]

LGTM

[evshary]

@stevenhartley Could you help me to merge the PR? I would like to work on eclipse-uprotocol/up-spec#103 based on the PR's changes.