Fix: Return shadow host for text node in shadow root in SerializedAXNode.ElementHandle (#15451) - #3595

CHROME-headful-ubuntu-latest-cdp failed on tip 7836344 with
Protocol error (Target.createTarget): Failed to open a new tab, then
TargetClosedException on retries. PR only changes Firefox.DefaultBuildId;
same flake was empty-committed on sibling rolls (#3592/#3595/#3572).

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* Fix: Roll Firefox DefaultBuildId to stable_156.0.1 (#15483)

Port of puppeteer/puppeteer#15483.

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* chore: retrigger CI after headful Chrome flakes

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue stuck build workflow

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue stuck matrix

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue hung firefox headful

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue hung firefox matrix

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue hung matrix

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue hung matrix

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue hung matrix

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue hung matrix

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue hung matrix

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue hung firefox headful

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue hung firefox headful

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue hung firefox headful

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: retrigger after ShouldKeepConnectedAfterTheLastPageIsClosed flake

CHROME-headful-ubuntu-latest-cdp failed on tip 7836344 with
Protocol error (Target.createTarget): Failed to open a new tab, then
TargetClosedException on retries. PR only changes Firefox.DefaultBuildId;
same flake was empty-committed on sibling rolls (#3592/#3595/#3572).

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: retrigger after CHROME-headless-ubuntu-cdp-pipe flake

Tip 9f7b38e failed on CHROME-headless-ubuntu-latest-cdp-pipe after
two full 882-pass runs aborted by host process exit, then
PageGoBackTests.ShouldWork NullReferenceException. Known Chrome NRE
cascade flake; PR only rolls Firefox.DefaultBuildId.

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

* ci: requeue hung FIREFOX-headless (≥90m stagnant)

Tip cb69e7e reached 16/17 SUCCESS; FIREFOX-headless-ubuntu-latest-webdriverbidi
stagnant ≥90m (~90.3m job). Authorized hang requeue only — no code changes.

Co-authored-by: Darío Kondratiuk <dariokondratiuk@gmail.com>

---------

Co-authored-by: Cursor Agent <cursoragent@cursor.com>

Updated [PuppeteerSharp](https://github.com/hardkoded/puppeteer-sharp)
from 25.11.0 to 25.12.0.

<details>
<summary>Release notes</summary>

_Sourced from [PuppeteerSharp's
releases](https://github.com/hardkoded/puppeteer-sharp/releases)._

## 25.12.0

## What's Changed
* Update WebDriverBiDi.NET dependency to v0.0.61 by @​jimevans in
hardkoded/puppeteer-sharp#3589
* New Feature: Roll to Firefox 156.0 (#​15464) by @​kblok in
hardkoded/puppeteer-sharp#3593
* New Feature: Roll to Chrome 154.0.8037.57 (#​15484) by @​kblok in
hardkoded/puppeteer-sharp#3592
* Fix: Clean temporary profiles on process exit (#​15441) by @​kblok in
hardkoded/puppeteer-sharp#3591
* Fix: Return shadow host for text node in shadow root in
SerializedAXNode.ElementHandle (#​15451) by @​kblok in
hardkoded/puppeteer-sharp#3595
* Fix: Release the mouse button when a drag or drop fails (#​15231) by
@​kblok in hardkoded/puppeteer-sharp#3596
* chore: bump version to 25.12.0 by @​kblok in
hardkoded/puppeteer-sharp#3599
* Fix: Roll to Firefox 156.0.1 (#​15483) by @​kblok in
hardkoded/puppeteer-sharp#3598


**Full Changelog**:
hardkoded/puppeteer-sharp@v25.11.0...v25.12.0

Commits viewable in [compare
view](hardkoded/puppeteer-sharp@v25.11.0...v25.12.0).
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