Reduce indent in connector tests

[bdraco]

What do these changes do?

Small cleanup ahead of #7368 since we will need to copy this pattern

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.56%. Comparing base (e3b1011) to head (d3c0aa1).
Report is 3 commits behind head on master.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9371      +/-   ##
==========================================
- Coverage   98.56%   98.56%   -0.01%     
==========================================
  Files         107      107              
  Lines       34981    34977       -4     
  Branches     4149     4145       -4     
==========================================
- Hits        34478    34474       -4     
  Misses        335      335              
  Partials      168      168              

Flag	Coverage Δ
CI-GHA	98.44% <100.00%> (-0.01%)	⬇️
OS-Linux	98.10% <100.00%> (-0.01%)	⬇️
OS-Windows	96.51% <100.00%> (-0.01%)	⬇️
OS-macOS	97.79% <100.00%> (-0.01%)	⬇️
Py-3.10.11	97.66% <100.00%> (-0.01%)	⬇️
Py-3.10.15	97.60% <100.00%> (-0.01%)	⬇️
Py-3.11.10	97.66% <100.00%> (-0.01%)	⬇️
Py-3.11.9	97.74% <100.00%> (-0.01%)	⬇️
Py-3.12.6	98.15% <100.00%> (-0.01%)	⬇️
Py-3.13.0-rc.2	98.14% <100.00%> (-0.01%)	⬇️
Py-3.9.13	97.56% <100.00%> (-0.01%)	⬇️
Py-3.9.20	97.50% <100.00%> (-0.01%)	⬇️
Py-pypy7.3.16	97.11% <100.00%> (-0.01%)	⬇️
VM-macos	97.79% <100.00%> (-0.01%)	⬇️
VM-ubuntu	98.10% <100.00%> (-0.01%)	⬇️
VM-windows	96.51% <100.00%> (-0.01%)	⬇️

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[patchback]

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

❌ Failed to cleanly apply c25099c on top of patchback/backports/3.10/c25099cebff5daddfc6f7668f765fce720540041/pr-9371

Backporting merged PR #9371 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/c25099cebff5daddfc6f7668f765fce720540041/pr-9371 upstream/3.10

4. Now, cherry-pick PR Reduce indent in connector tests #9371 contents into that branch:

   $ git cherry-pick -x c25099cebff5daddfc6f7668f765fce720540041

   If it'll yell at you with something like fatal: Commit c25099cebff5daddfc6f7668f765fce720540041 is a merge but no -m option was given., add -m 1 as follows instead:

   $ git cherry-pick -m1 -x c25099cebff5daddfc6f7668f765fce720540041

5. At this point, you'll probably encounter some merge conflicts. You must
   resolve them in to preserve the patch from PR Reduce indent in connector tests #9371 as close to the
   original as possible.
6. Push this branch to your fork on GitHub:

   $ git push origin patchback/backports/3.10/c25099cebff5daddfc6f7668f765fce720540041/pr-9371

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 c25099c on top of patchback/backports/3.11/c25099cebff5daddfc6f7668f765fce720540041/pr-9371

Backporting merged PR #9371 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/c25099cebff5daddfc6f7668f765fce720540041/pr-9371 upstream/3.11

4. Now, cherry-pick PR Reduce indent in connector tests #9371 contents into that branch:

   $ git cherry-pick -x c25099cebff5daddfc6f7668f765fce720540041

   If it'll yell at you with something like fatal: Commit c25099cebff5daddfc6f7668f765fce720540041 is a merge but no -m option was given., add -m 1 as follows instead:

   $ git cherry-pick -m1 -x c25099cebff5daddfc6f7668f765fce720540041

5. At this point, you'll probably encounter some merge conflicts. You must
   resolve them in to preserve the patch from PR Reduce indent in connector tests #9371 as close to the
   original as possible.
6. Push this branch to your fork on GitHub:

   $ git push origin patchback/backports/3.11/c25099cebff5daddfc6f7668f765fce720540041/pr-9371

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.