chore(uptime): Bump ACTIVE_FAILURE_THRESHOLD to 3

[wedamija]

Since we're moving to 60 second intervals, we want a slightly higher failure threshold

[codecov]

❌ 2 Tests Failed:

Tests completed	Failed	Passed	Skipped
21646	2	21644	202

View the top 2 failed tests by shortest run time

tests.sentry.uptime.consumers.test_results_consumers.ProcessResultTest�test_resolve

Stack Traces | 2.62s run time

#x1B[1m#x1B[.../uptime/consumers/test_results_consumers.py#x1B[0m:276: in test_resolve
    group = Group.objects.get(grouphash__hash=hashed_fingerprint)
#x1B[1m#x1B[31m.venv/lib/python3.11.../db/models/manager.py#x1B[0m:87: in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
#x1B[1m#x1B[31m.venv/lib/python3.11.../db/models/query.py#x1B[0m:649: in get
    raise self.model.DoesNotExist(
#x1B[1m#x1B[31mE   sentry.models.group.Group.DoesNotExist: Group matching query does not exist.#x1B[0m

tests.sentry.uptime.consumers.test_results_consumers.ProcessResultTest�test

Stack Traces | 2.91s run time

#x1B[1m#x1B[.../uptime/consumers/test_results_consumers.py#x1B[0m:118: in test
    group = Group.objects.get(grouphash__hash=hashed_fingerprint)
#x1B[1m#x1B[31m.venv/lib/python3.11.../db/models/manager.py#x1B[0m:87: in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
#x1B[1m#x1B[31m.venv/lib/python3.11.../db/models/query.py#x1B[0m:649: in get
    raise self.model.DoesNotExist(
#x1B[1m#x1B[31mE   sentry.models.group.Group.DoesNotExist: Group matching query does not exist.#x1B[0m

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