Ruff: reformat testing.

Preserve yapf style to the best capacity.

LSC doc:
https://docs.google.com/document/d/1P6AE9aeKuFkxPAYInYxLFIpDgpiCAT-S_BQkNU0lb3s/edit?tab=t.0

Onboarded using the following command: `~/cr/depot_tools/ruff_chromium format .`

NO_IFTTT=Pure reformatting

Bug: 40874143
Change-Id: Ie04d61510824718e88907b20adb0fb884250fe33
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8257278
Commit-Queue: Alex Ovsienko <ovsienko@google.com>
Reviewed-by: Junji Watanabe <jwata@google.com>
SLSA-Policy-Verified: SLSA Policy Verification Service <devtools-gerritcodereview-exitgate@google.com>
Owners-Override: Alex Ovsienko <ovsienko@google.com>
Cr-Commit-Position: refs/heads/main@{#1679385}
NOKEYCHECK=True
GitOrigin-RevId: 39a4a07218b68d38327e7842aa78453ad62b19c7