tests(py39): TestPyJWKClient test suddenly failing on master

[pachewise]

See title; while working on #660, I saw that TestPyJWKClient started failing on py39 (see specific test below).

Expected Result

All test pass on master.

Actual Result

TestPyJWKClient.test_get_jwt_set_sslcontext_no_ca is failing (not throwing an error).

Reproduction Steps

Run tox -e py39-crypto -- tests/test_jwks_client.py::TestPyJWKClient::test_get_jwt_set_sslcontext_no_ca

System Information

Note: likely not relevant as this is related to tests on py39

$ python -m jwt.help

{
  "cryptography": {
    "version": "43.0.1"
  },
  "implementation": {
    "name": "CPython",
    "version": "3.11.4"
  },
  "platform": {
    "release": "24.3.0",
    "system": "Darwin"
  },
  "pyjwt": {
    "version": "2.10.1"
  }
}

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