chore(test): change teardown to teardown_module (#7584)

Change `teardown` to `teardown_module` as it should be run after all
tests are executed instead of after each one.

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Author: gnufede

tests/appsec/iast/aspects/test_common_aspects.py

@@ -66,7 +66,7 @@ def test_aspect_patched_result(aspect, args, kwargs):
     assert getattr(patched_callers, aspect)(*args, **kwargs) == getattr(unpatched_callers, aspect)(*args, **kwargs)
 
 
-def teardown():
+def teardown_module(_):
     """
     Remove the callers file after the tests are done.
     """