[GN]: Fix bug in roller script with try servers

The API endpoint being used appears to be broken. There is a direct URL
to the try_server_results data, so use that.

BUG=none

Review URL: https://codereview.chromium.org/1365393002

Cr-Original-Commit-Position: refs/heads/master@{#350906}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: e1bbf3218766ea727b229398aaae0df17fe3856b
1 file changed
tree: 2bcf3fefbf82c48bab09ffb8a15db59a743f28bb
  1. tools/