Fix resolve_host "Task was destroyed but it is pending" errors

[Dreamsorcerer]

Fixes #7072.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.28%. Comparing base (51fade1) to head (594b629).
Report is 1066 commits behind head on master.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #8967   +/-   ##
=======================================
  Coverage   98.28%   98.28%           
=======================================
  Files         107      107           
  Lines       34219    34246   +27     
  Branches     4057     4060    +3     
=======================================
+ Hits        33631    33658   +27     
  Misses        415      415           
  Partials      173      173           

Flag	Coverage Δ
CI-GHA	98.17% <100.00%> (+<0.01%)	⬆️
OS-Linux	97.83% <100.00%> (+<0.01%)	⬆️
OS-Windows	96.24% <100.00%> (+<0.01%)	⬆️
OS-macOS	97.51% <100.00%> (+<0.01%)	⬆️
Py-3.10.11	97.61% <100.00%> (+<0.01%)	⬆️
Py-3.10.14	97.54% <100.00%> (+<0.01%)	⬆️
Py-3.11.9	97.77% <100.00%> (+<0.01%)	⬆️
Py-3.12.5	97.89% <100.00%> (+<0.01%)	⬆️
Py-3.9.13	97.50% <100.00%> (+<0.01%)	⬆️
Py-3.9.19	97.44% <100.00%> (+<0.01%)	⬆️
Py-pypy7.3.16	97.05% <100.00%> (+<0.01%)	⬆️
VM-macos	97.51% <100.00%> (+<0.01%)	⬆️
VM-ubuntu	97.83% <100.00%> (+<0.01%)	⬆️
VM-windows	96.24% <100.00%> (+<0.01%)	⬆️

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[patchback]

Backport to 3.10: 💔 cherry-picking failed — conflicts found

❌ Failed to cleanly apply cd761a3 on top of patchback/backports/3.10/cd761a347be2609deca503646b9b5fb3585b2fda/pr-8967

Backporting merged PR #8967 into master

1. Ensure you have a local repo clone of your fork. Unless you cloned it
   from the upstream, this would be your origin remote.
2. Make sure you have an upstream repo added as a remote too. In these
   instructions you'll refer to it by the name upstream. If you don't
   have it, here's how you can add it:

   $ git remote add upstream https://github.com/aio-libs/aiohttp.git

3. Ensure you have the latest copy of upstream and prepare a branch
   that will hold the backported code:

   $ git fetch upstream
   $ git checkout -b patchback/backports/3.10/cd761a347be2609deca503646b9b5fb3585b2fda/pr-8967 upstream/3.10

4. Now, cherry-pick PR Fix resolve_host "Task was destroyed but it is pending" errors #8967 contents into that branch:

   $ git cherry-pick -x cd761a347be2609deca503646b9b5fb3585b2fda

   If it'll yell at you with something like fatal: Commit cd761a347be2609deca503646b9b5fb3585b2fda is a merge but no -m option was given., add -m 1 as follows instead:

   $ git cherry-pick -m1 -x cd761a347be2609deca503646b9b5fb3585b2fda

5. At this point, you'll probably encounter some merge conflicts. You must
   resolve them in to preserve the patch from PR Fix resolve_host "Task was destroyed but it is pending" errors #8967 as close to the
   original as possible.
6. Push this branch to your fork on GitHub:

   $ git push origin patchback/backports/3.10/cd761a347be2609deca503646b9b5fb3585b2fda/pr-8967

7. Create a PR, ensure that the CI is green. If it's not — update it so that
   the tests and any other checks pass. This is it!
   Now relax and wait for the maintainers to process your pull request
   when they have some cycles to do reviews. Don't worry — they'll tell you if
   any improvements are necessary when the time comes!

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.

[patchback]

Backport to 3.11: 💔 cherry-picking failed — conflicts found

❌ Failed to cleanly apply cd761a3 on top of patchback/backports/3.11/cd761a347be2609deca503646b9b5fb3585b2fda/pr-8967

Backporting merged PR #8967 into master

1. Ensure you have a local repo clone of your fork. Unless you cloned it
   from the upstream, this would be your origin remote.
2. Make sure you have an upstream repo added as a remote too. In these
   instructions you'll refer to it by the name upstream. If you don't
   have it, here's how you can add it:

   $ git remote add upstream https://github.com/aio-libs/aiohttp.git

3. Ensure you have the latest copy of upstream and prepare a branch
   that will hold the backported code:

   $ git fetch upstream
   $ git checkout -b patchback/backports/3.11/cd761a347be2609deca503646b9b5fb3585b2fda/pr-8967 upstream/3.11

4. Now, cherry-pick PR Fix resolve_host "Task was destroyed but it is pending" errors #8967 contents into that branch:

   $ git cherry-pick -x cd761a347be2609deca503646b9b5fb3585b2fda

   If it'll yell at you with something like fatal: Commit cd761a347be2609deca503646b9b5fb3585b2fda is a merge but no -m option was given., add -m 1 as follows instead:

   $ git cherry-pick -m1 -x cd761a347be2609deca503646b9b5fb3585b2fda

5. At this point, you'll probably encounter some merge conflicts. You must
   resolve them in to preserve the patch from PR Fix resolve_host "Task was destroyed but it is pending" errors #8967 as close to the
   original as possible.
6. Push this branch to your fork on GitHub:

   $ git push origin patchback/backports/3.11/cd761a347be2609deca503646b9b5fb3585b2fda/pr-8967

7. Create a PR, ensure that the CI is green. If it's not — update it so that
   the tests and any other checks pass. This is it!
   Now relax and wait for the maintainers to process your pull request
   when they have some cycles to do reviews. Don't worry — they'll tell you if
   any improvements are necessary when the time comes!

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.