Update Chrome (for Testing) PIN

Chromium pin updated to 128.0.6575.0

Roll created at https://cr-buildbucket.appspot.com/build/8743344003840516113

Bug: none
Change-Id: I18e1212f481088c4a06f549f5111f19d0a2d1c72
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/5675720
Commit-Queue: Devtools Autoroller <devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Devtools Autoroller <devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>

DEPS

@@ -46,7 +46,7 @@ vars = {
  # Chrome version used for tests. It should be regularly updated to
  # match the Canary version listed here:
  # https://googlechromelabs.github.io/chrome-for-testing/last-known-good-versions.json
- 'chrome': '128.0.6574.0',
+ 'chrome': '128.0.6575.0',
 
  # 'magic' text to tell depot_tools that git submodules should be accepted but
  # but parity with DEPS file is expected.