fix: Fix Flaky Oracle Server Test

[zrbecker]

This fixes the flaky oracle server test.

• Instead of creating a listener to get a random available port, I made it so we could just use that listener directly when creating the server.
• I added back the health check, the reason the heath check was causing issues before was that the listener was being closed as a defer call, so that make the port unavailable for the oracle server. However, using the listener directly solve this.
• I used /version instead of /prices for health check since /prices ends up calling the mock, which we have not set mock functions for.
• I changed the Timeout test to just check for an error instead of a specific error since the specific error it returns seems like an implementation detail of gRPC.

The test still seems a little flaky as I am getting this error after 20-30 runs

        server_test.go:215: 
                Error Trace:    /Users/zrbecker/code/skip/connect/service/servers/oracle/server_test.go:215
                Error:          Received unexpected error:
                                rpc error: code = DeadlineExceeded desc = context deadline exceeded
                Test:           TestServerTestSuite/TestOracleMarketMap

But it is certainly less flaky than it was.

[aljo242]

@zrbecker looks like theres some conflicts

[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 8 lines in your changes missing coverage. Please review.

Project coverage is 57.01%. Comparing base (676a090) to head (0d8d2e9).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
service/servers/oracle/server.go	33.33%	7 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #767      +/-   ##
==========================================
- Coverage   57.07%   57.01%   -0.07%     
==========================================
  Files         208      208              
  Lines       11625    11632       +7     
==========================================
- Hits         6635     6632       -3     
- Misses       4387     4396       +9     
- Partials      603      604       +1     

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[zrbecker]

@zrbecker looks like theres some conflicts

should be resolved now