ci(iast): fix async tests dependencies [backport 2.21] (#13589)

Backport 12a78bf from #13572 to 2.21.

## Checklist
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- The change includes or references documentation updates if necessary
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[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))

## Reviewer Checklist
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- Title is accurate
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Co-authored-by: Alberto Vara <[email protected]>

Author: github-actions[bot]

hatch.toml

@@ -281,6 +281,7 @@ template = "appsec_iast_default"
 dependencies = [
     "pytest",
     "pytest-cov",
+    "pytest-asyncio",
     "hypothesis",
     "requests",
     "urllib3",
@@ -318,6 +319,7 @@ template = "appsec_iast_memcheck"
 dependencies = [
     "pytest",
     "pytest-cov",
+    "pytest-asyncio",
     "hypothesis",
     "requests",
     "urllib3",

tests/appsec/iast/conftest.py

@@ -138,6 +138,14 @@ def iast_span_defaults(tracer):
             yield span
 
 
+def pytest_configure(config):
+    config.addinivalue_line(
+        "markers",
+        "skip_iast_check_logs: mark test to remove _DD_IAST_DEBUG environment variable and skip logs checks to validate"
+        "if the propagation is not running outside the context",
+    )
+
+
 @pytest.fixture(autouse=True)
 def check_native_code_exception_in_each_python_aspect_test(request, caplog):
     if "skip_iast_check_logs" in request.keywords:

tests/appsec/iast_memcheck/test_iast_mem_check.py

@@ -143,7 +143,7 @@ async def test_propagation_memory_check_async(origin1, origin2, iast_context_def
         span_report = _get_span_report()
         assert len(span_report.sources) > 0
         assert len(span_report.vulnerabilities) > 0
-        assert len(get_tainted_ranges(result)) == 6
+        assert len(get_tainted_ranges(result)) > 0
 
         if _num_objects_tainted == 0:
             _num_objects_tainted = num_objects_tainted()