Tests depending on time equality are flaky

Fedora package building fails because of flaky test:
________________ TestCompute.test_create_network_load_balancer _________________
self = <tests.test_compute.TestCompute object at 0x7f95a435f7d0>
exo = <[AttributeError("'ExoscaleMock' object has no attribute 'api_key'") raised in repr()] ExoscaleMock object at 0x7f95a3398ef0>
zone = {'id': '870666c8-f21f-4f1e-ae6f-bdd09d4a9a29', 'name': 'ch-gva-2'}
nlb = <function nlb.<locals>._nlb at 0x7f95a37f45e0>
    def test_create_network_load_balancer(self, exo, zone, nlb):
        zone = zone()
        nlb_name = _random_str()
        nlb_description = _random_str()
        nlb_creation_date = datetime.now().strftime("%Y-%m-%dT%H:%M:%SZ")
        operation_id = _random_uuid()

        expected = nlb(
            zone=zone["name"],
            name=nlb_name,
            description=nlb_description,
            created=nlb_creation_date,
        )

        def _assert_request(request, context):
            body = json.loads(request.body)
            assert body["name"] == nlb_name
            assert body["description"] == nlb_description

            context.status_code = 200
            context.headers["Content-Type"] = "application/json"
            return {
                "id": operation_id,
                "state": "success",
                "reference": {"id": expected["id"]},
            }

        exo.mock_post(zone["name"], "load-balancer", _assert_request)
        exo.mock_get_operation(zone["name"], operation_id, expected["id"])
        exo.mock_get_v2(
            zone["name"], "load-balancer/" + expected["id"], expected
        )

        actual = exo.compute.create_network_load_balancer(
            zone=Zone._from_cs(zone),
            name=nlb_name,
            description=nlb_description,
        )
        assert actual.zone.name == zone["name"]
        assert actual.name == expected["name"]
        assert actual.description == expected["description"]
>       assert (
            actual.creation_date.strftime("%Y-%m-%dT%H:%M:%SZ")
            == nlb_creation_date
        )
E       AssertionError: assert '2023-10-01T16:34:47Z' == '2023-10-01T16:34:46Z'
E         - 2023-10-01T16:34:46Z
E         ?                   ^
E         + 2023-10-01T16:34:47Z
E         ?                   ^
tests/test_compute.py:864: AssertionError
I suggest to compare times using subtraction and comparing it to small timedelta.
exoscale / python-exoscale

Tests depending on time equality are flaky #49
