Migrate test_fonts to GCS

Bug: 336625018
Change-Id: Ic4c37dad70dee6d6eeedd1b8845165e4230fc4ac
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5491359
Reviewed-by: Thomas Anderson <thomasanderson@chromium.org>
Commit-Queue: Benjamin Joyce (Ben) <bjoyce@chromium.org>
Reviewed-by: Stephanie Kim <kimstephanie@google.com>
Cr-Commit-Position: refs/heads/main@{#1292739}
NOKEYCHECK=True
GitOrigin-RevId: 3fcc90fc9b86423fee6d30a283cd6dd20ffffde6