Roll Help App from 5DBviJZ8kpMWkzgjJ... to oQJ6PnTMCWCkmDczw...

Release_Notes: http://go/help_app-x20/relnotes/Main/help_app_nightly_202403290700_RC00.html

https://chrome-infra-packages.appspot.com/p/chromeos_internal/apps/help_app/app/+/oQJ6PnTMCWCkmDczwTOCrqFlCLWDSA9hfOVMjZuexc0C

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://skia-autoroll.corp.goog/r/help-app-chromium-autoroll
Please CC cros-essential-apps-dev@chromium.org,help-app@grotations.appspotmail.com,jomag@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Cq-Include-Trybots: luci.chrome.try:linux-chromeos-chrome
Bug: None
Tbr: help-app@grotations.appspotmail.com
Change-Id: I83921beed42d60b91d8e7cffaf3723e6665b082b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5407015
Commit-Queue: chromium-internal-autoroll <chromium-internal-autoroll@skia-corp.google.com.iam.gserviceaccount.com>
Bot-Commit: chromium-internal-autoroll <chromium-internal-autoroll@skia-corp.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1280190}