updater: Use valid URLs in integration test for the app logo url

The win-asan bot is flaky with the `IntegrationTest.AppLogoUrl`, which
may be because of URL resolution.

To avoid resolution issues, this CL modifies the test to use valid URLs
for the update server, crash, as well as the DM server.

Bug: 325372957,332654156
Change-Id: I2cd0c53c5ea43ee5b132b73779b2811a44f575e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5422271


Commit-Queue: Sorin Jianu <sorin@chromium.org>
Reviewed-by: Sorin Jianu <sorin@chromium.org>
Auto-Submit: S Ganesh <ganesh@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1282313}