Add missing ? qualifier in test

Author: kastiglione

lldb/test/API/lang/swift/async/formatters/task/TestSwiftTaskSyntheticProvider.py

@@ -21,7 +21,7 @@ def test_top_level_task(self):
             patterns=[
                 textwrap.dedent(
                     r"""
-                    \(Task<\(\), Error>\) task = id:([1-9]\d*) flags:(?:suspended\|)(?:running|enqueued) \{
+                    \(Task<\(\), Error>\) task = id:([1-9]\d*) flags:(?:suspended\|)?(?:running|enqueued) \{
                       address = 0x[0-9a-f]+
                       id = \1
                       enqueuePriority = \.medium