Also add a script to do the bridge between a python 2 and a python 3 interpreter. This should be removed when the merge scripts will be using python 3 (https://crbug.com/webrtc/13835). Note that webrtc_dashboard_upload.py will be removed when the new script is stabilized. Bug: webrtc:13806 Change-Id: I806fa11f417ef37674bdaeb5126c71570e3697d7 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/255560 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Christoffer Jansson <jansson@google.com> Reviewed-by: Artem Titov <titovartem@webrtc.org> Reviewed-by: Christoffer Jansson <jansson@webrtc.org> Commit-Queue: Jeremy Leconte <jleconte@google.com> Cr-Commit-Position: refs/heads/main@{#36252}