Fix Failing CI Integration Tests

[a-dubs]

3 tests are failing due to #409 and #410. These should be resolved ASAP because 2/3 failures seem to be symptoms of a regression being introduced. The other one just seems like an issue with how an integration tests is being setup / reusing a fixture.

FAILED tests/integration_tests/test_public_api.py::test_public_api_minimal_images*** - ValueError: Protocol message Instance has no "serviceAccounts" field.
FAILED tests/integration_tests/test_public_api.py::test_public_api*** - ValueError: Protocol message Instance has no "serviceAccounts" field.
ERROR tests/integration_tests/test_public_api.py::test_public_api_minimal_images*** - botocore.exceptions.ClientError: An error occurred (InvalidKeyPair.Duplicate) when calling the ImportKeyPair operation: The keypair 'pycl-test-0924-111426' already exists.

The first two relate to #409 and the last one relates to #410.