Add note to upload_revision.py about sync_deps.py

Bug: 338612242
Change-Id: I945c1e611820c44d70fe739334351af0ed6c59e1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5665126
Auto-Submit: Hans Wennborg <hans@chromium.org>
Commit-Queue: Zequan Wu <zequanwu@google.com>
Reviewed-by: Zequan Wu <zequanwu@google.com>
Cr-Commit-Position: refs/heads/main@{#1321730}
NOKEYCHECK=True
GitOrigin-RevId: c200c078292858291a221c55531512ff71ecc16a
1 file changed