* chore: bump chromium in DEPS to 126.0.6470.0

* 5492605: Migrate TODOs referencing old crbug IDs to the new issue tracker IDs | https://chromium-review.googlesource.com/c/chromium/src/+/5492605

* 5513277: Move subresource-filter-ruleset to GCS | https://chromium-review.googlesource.com/c/chromium/src/+/5513277

* 5512656: Remove CustomizeChromeSupportsChromeRefresh2023 | https://chromium-review.googlesource.com/c/chromium/src/+/5512656

* 5516009: Accept mouse events in inactive window for Top Chrome WebUIs | https://chromium-review.googlesource.com/c/chromium/src/+/5516009

* 5376861: Change references to RWHVB in RWHIER and RenderWidgetTargeter to RWHVI. | https://chromium-review.googlesource.com/c/chromium/src/+/5376861

* 5490530: Use partition_alloc PA_BUILDFLAG(...) outside PA. #cleanup | https://chromium-review.googlesource.com/c/chromium/src/+/5490530

* 5296870: network: Allow trusted loaders to learn the sent request cookies. ...