Fix flaky test: `test_mapped_task_upstream_removed_with_all_failed_trigger_rules`

[amoghrajesh]

Body

  _ TestTriggerRuleDep.test_mapped_task_upstream_removed_with_all_failed_trigger_rules[True] _
  airflow-core/tests/unit/ti_deps/deps/test_trigger_rule_dep.py:1136: in test_mapped_task_upstream_removed_with_all_failed_trigger_rules
      _test_trigger_rule(ti=ti, session=session, flag_upstream_failed=flag_upstream_failed)
  airflow-core/tests/unit/ti_deps/deps/test_trigger_rule_dep.py:1647: in _test_trigger_rule
      assert ti.state == expected_ti_state
  E   AssertionError: assert equals failed
  E     <TaskInstanceState.UPSTREAM_FAI  None                            
  E     LED: 'upstream_failed'>

Have seen this to be occasionally flaky. Example: https://github.com/apache/airflow/actions/runs/14963291599

Committer

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