[Traffic Annotations] Dedupe an annotation ID

crrev.com/c/5147969 added a new annotation with the same ID
as an existing one, which wasn't caught during presubmit. This broke
linux-annotator-rel, etc.

Change the annotation ID to make the bots green.

Change-Id: I86974d67316a40109fbbb392c8a54c4126ad61a5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5184717
Reviewed-by: Yann Dago <ydago@chromium.org>
Commit-Queue: Nicolas Ouellet-Payeur <nicolaso@chromium.org>
Reviewed-by: Paul Adedeji <pauladedeji@google.com>
Reviewed-by: Chris Mullins <crmullins@chromium.org>
Code-Coverage: findit-for-me@appspot.gserviceaccount.com <findit-for-me@appspot.gserviceaccount.com>
Reviewed-by: Fabio Tirelo <ftirelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1245555}