gh-103186: Suppress RuntimeWarning about unclosed async iterator in test_sys_settrace

[serhiy-storchaka]

$ ./python -Wa -m test test_sys_settrace -m test_jump_out_of_async_for_block_forwards -m test_jump_out_of_async_for_block_backwards ... /home/serhiy/py/cpython/Lib/test/support/__init__.py:758: RuntimeWarning: coroutine method 'aclose' of 'asynciter' was never awaited gc.collect() RuntimeWarning: Enable tracemalloc to get the object allocation traceback /home/serhiy/py/cpython/Lib/test/support/__init__.py:758: RuntimeWarning: coroutine method 'aclose' of 'asynciter' was never awaited gc.collect() RuntimeWarning: Enable tracemalloc to get the object allocation traceback 

• Issue: Regression tests pass but return unnecessary output (errors and warnings) #103186

[miss-islington]

Thanks @serhiy-storchaka for the PR 🌮🎉.. I'm working now to backport this PR to: 3.11, 3.12.
🐍🍒⛏🤖

[miss-islington]

Sorry, @serhiy-storchaka, I could not cleanly backport this to 3.12 due to a conflict.
Please backport using cherry_picker on command line.
cherry_picker d485551c9d1792ff3539eef1d6374bd4c01dcd5d 3.12

[miss-islington]

Sorry, @serhiy-storchaka, I could not cleanly backport this to 3.11 due to a conflict.
Please backport using cherry_picker on command line.
cherry_picker d485551c9d1792ff3539eef1d6374bd4c01dcd5d 3.11

[bedevere-bot]

GH-109086 is a backport of this pull request to the 3.11 branch.

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot s390x SLES 3.x has failed when building commit d485551.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/all/#builders/540/builds/6442) and take a look at the build logs.
4. Check if the failure is related to this commit (d485551) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/all/#builders/540/builds/6442

Summary of the results of the build (if available):

==

Click to see traceback logs

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[miss-islington]

Thanks @serhiy-storchaka for the PR 🌮🎉.. I'm working now to backport this PR to: 3.12.
🐍🍒⛏🤖

[bedevere-bot]

GH-109138 is a backport of this pull request to the 3.12 branch.