[KYUUBI #7360] Fix flaky PyHive test connection

[NikhilUjjwal7]

Why are the changes needed?

Fixes #7360.

python/pyhive/tests/test_hive.py::TestHive::test_description can fail intermittently while opening the Hive connection with TTransportException: TSocket read 0 bytes.

This patch makes the test connection helper retry transient TTransportExceptions before failing, which makes the PyHive integration tests more tolerant of short HiveServer2 startup or connection timing issues.

How was this patch tested?

Added a unit test that simulates a transient TTransportException from hive.connect and verifies that TestHive.connect() retries and succeeds on the next attempt.

Tested with:

python -m pytest python/pyhive/tests/test_hive.py::TestHive::test_connect_retries_transient_transport_failure -q

Result:
1 passed in 1.07s

[NikhilUjjwal7]

The triage workflow failure appears to be unrelated to this PR. It fails while parsing .github/labeler.yml in actions/labeler@v7, while this PR only changes python/pyhive/tests/test_hive.py.