updater: replace DUMP_WILL_BE_CHECK with CHECK in winhttp

DUMP_WILL_BE_CHECK has been in the code base for 2 milestones and
no dump was recorded for these call sites so far.

FIXED: 325343942
Change-Id: Ib7c9a08dfdfb99f83835219434a39eff7ff91c0a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5389543


Commit-Queue: Sorin Jianu <sorin@chromium.org>
Auto-Submit: Sorin Jianu <sorin@chromium.org>
Reviewed-by: S Ganesh <ganesh@chromium.org>
Commit-Queue: S Ganesh <ganesh@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1277214}