Roll Help App from 9xilvp8rZ52fCu4gl... to KDg-0947hLwVXt3_5...

Release_Notes: http://go/help_app-x20/relnotes/Main/help_app_nightly_202403310700_RC00.html

https://chrome-infra-packages.appspot.com/p/chromeos_internal/apps/help_app/app/+/KDg-0947hLwVXt3_5cH3BP8Pbeoen2FrGBtOGfeA81QC

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: I6d725097316331568e668524cefaaaa4d4ce3fc9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5408290
Bot-Commit: chromium-internal-autoroll <chromium-internal-autoroll@skia-corp.google.com.iam.gserviceaccount.com>
Commit-Queue: chromium-internal-autoroll <chromium-internal-autoroll@skia-corp.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1280606}