fix static tests

Author: maxfischer2781

unittests/test_contextlib.py

@@ -158,8 +158,8 @@ async def no_op():
 
     # during shutdown, generators may be killed in arbitrary order
     # make sure we do not suppress GeneratorExit
+    context = no_op()
     with pytest.raises(GeneratorExit, match="inner"):
-        context = no_op()
         async with context:
             # simulate cleanup closing the child early
             await context.gen.aclose()