Bug 1920159 [wpt PR 48288] - Update test_driver.click() documentation…

… to specify "mouse" click., a=testonly

Automatic update from web-platform-tests
Update test_driver.click() documentation to specify "mouse" click.

web-platform-tests/wpt#48158

Change-Id: Ic3c18dd7ae76077fa2303018918777dc04d82022
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5861351
Commit-Queue: Robert Flack <flackrchromium.org>
Auto-Submit: Mustaq Ahmed <mustaqchromium.org>
Reviewed-by: Robert Flack <flackrchromium.org>
Cr-Commit-Position: refs/heads/main{#1358149}

--

wpt-commits: 783e382187aad9beff086df99e0e758246c5aacf
wpt-pr: 48288

UltraBlame original commit: 6e281d0d9f196c72d8d08b2c84e95f3fa8eaf54f