fixed connect helpers' documentation

[SavvasMohito]

connect_to_custom() and connect_to_local() still had the old timeout description in their function definitions. I replaced it with the new additional_config to match their input variables (similar to connect_to_wcs() and connect_to_embedded())

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.10%. Comparing base (e977081) to head (558ccad).
Report is 1696 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #840      +/-   ##
==========================================
+ Coverage   93.48%   95.10%   +1.61%     
==========================================
  Files          70      166      +96     
  Lines        8625    17085    +8460     
==========================================
+ Hits         8063    16248    +8185     
- Misses        562      837     +275     

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[SavvasMohito]

the test seems to fail because of this:
{"action":"grpc_startup","error":"listen tcp :50040: bind: address already in use","level":"fatal","msg":"failed to start grpc server","time":"2024-01-31T16:29:06Z"}

maybe a config issue with the test scripts?

[tsmith023]

Sadly, there are multiple flaky tests in our CI pipeline currently that we hope to iron out in the coming weeks

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