fix(tests): Fix number of values unpacked

[ceorourke]

Fixes https://sentry.sentry.io/issues/6610579058/?project=2423079&referrer=github-pr-bot

[mifu67]

#91823 I fix this here

[codecov]

⚠️ Parser warning

The parser emitted a warning. Please review your JUnit XML file:

Warning while parsing testcase attributes: Limit of string is 1000 chars, for name, we got 2083 at 1:156897 in /home/runner/work/sentry/sentry/.artifacts/pytest.junit.xml

---

❌ 2 Tests Failed:

Tests completed	Failed	Passed	Skipped
25883	2	25881	269

View the top 2 failed test(s) by shortest run time

tests.sentry.incidents.endpoints.test_organization_alert_rule_details.AlertRuleDetailsPutEndpointTest::test_workflow_engine_serializer

Stack Traces | 3.91s run time

#x1B[1m#x1B[.../incidents/endpoints/test_organization_alert_rule_details.py#x1B[0m:722: in test_workflow_engine_serializer
    self.critical_detector_trigger, _ = migrate_metric_data_conditions(critical_trigger)
#x1B[1m#x1B[31mE   ValueError: too many values to unpack (expected 2)#x1B[0m

tests.sentry.incidents.endpoints.test_organization_alert_rule_details.AlertRuleDetailsGetEndpointTest::test_workflow_engine_serializer

Stack Traces | 4.64s run time

#x1B[1m#x1B[.../incidents/endpoints/test_organization_alert_rule_details.py#x1B[0m:239: in test_workflow_engine_serializer
    self.critical_detector_trigger, _ = migrate_metric_data_conditions(critical_trigger)
#x1B[1m#x1B[31mE   ValueError: too many values to unpack (expected 2)#x1B[0m

To view more test analytics, go to the Test Analytics Dashboard
_{📋 Got 3 mins? Take this short survey to help us improve Test Analytics.}