close client connection in client consumer

[DanielePalaia]

I think in the Consumer part we create a client on line 97 which creates a connection:

 let mut client = self.environment.create_client().await?;

But then we create another one on line 123 without closing the previous one:

client = Client::connect(ClientOptions ....

Also in the close handle we don't close the locator connection.

This PR should solve the issue

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 90.35%. Comparing base (04e184b) to head (b1a4dd7).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/consumer.rs	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #235      +/-   ##
==========================================
+ Coverage   88.90%   90.35%   +1.45%     
==========================================
  Files          71       75       +4     
  Lines        6065     6801     +736     
==========================================
+ Hits         5392     6145     +753     
+ Misses        673      656      -17     

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[DanielePalaia]

@wolf4ood @Gsantomaggio