Fix BIOTest.InvokeConnectCallback test.

[PiotrSikora]

Description of changes:

Fix BIOTest.InvokeConnectCallback test.

Previously, the test tried to connect to localhost on port 8080, which
is a frequently used alternative HTTP port, and it failed if there was
anything listening on that port.

Call-outs:

N/A

Testing:

./crypto/crypto_test --gtest_filter="BIOTest.InvokeConnectCallback"

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license and the ISC license.

[justsmth]

I supposed it doesn't matter as long as the connection fails, but I would prefer the test connecting to a non-privileged port (>= 1024). Something arbitrary and not in common use (5325 or 9723?).

[PiotrSikora]

I supposed it doesn't matter as long as the connection fails, but I would prefer the test connecting to a non-privileged port (>= 1024). Something arbitrary and not in common use (5325 or 9723?).

I intentionally selected privileged port, since it's less likely that there will be something random listening on it, but sure, changed to port 5325.

[PiotrSikora]

Could you re-kick AWS CodeBuild BuildBatch us-west-2 (aws-lc-ci-integration) (assuming it's a flaky test and not a real failure - there is no public access to the CI output)? Thanks!

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (af5fe84) 76.85% compared to head (9884e23) 76.84%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1433      +/-   ##
==========================================
- Coverage   76.85%   76.84%   -0.01%     
==========================================
  Files         425      425              
  Lines       71527    71527              
==========================================
- Hits        54974    54968       -6     
- Misses      16553    16559       +6     

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