Update help_app to Uu11Q1wqNSVwkH2IvVt8kSs867Nu-6mf0O9kxpQfckAC CIPD package.

CIPD package: https://chrome-infra-packages.appspot.com/p/chromeos_internal/apps/help_app/app/+/Uu11Q1wqNSVwkH2IvVt8kSs867Nu-6mf0O9kxpQfckAC

Release notes: http://go/help_app-x20/relnotes/Nightly/help_app_nightly_202006240800_RC01.html

Cq-Include-Trybots: chrome/try:linux-chromeos-chrome
Change-Id: I1ca4c636d0049e09fc0c7517d7817862a838c19e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2277364Reviewed-by: Patti <patricialor@chromium.org>
Commit-Queue: Rachel Carpenter <carpenterr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#784306}

DEPS

@@ -1533,7 +1533,7 @@ deps = {
     'packages': [
       {
         'package': 'chromeos_internal/apps/help_app/app',
-        'version': 'xWPW8iOCFFb9BXbsulgdmAJ8knCb8NlzyKzfh1Tst2AC',
+        'version': 'Uu11Q1wqNSVwkH2IvVt8kSs867Nu-6mf0O9kxpQfckAC',
       },
     ],
     'condition': 'checkout_chromeos and checkout_src_internal',