Set up signCLA Bug: b/247739438 Change-Id: I167af3bc6f826931808637cc7f7cb7e5d4286e03 Reviewed-on: https://webrtc-review.googlesource.com/c/All-Projects/+/276120 Reviewed-by: Josip Sokcevic <sokcevic@google.com> Reviewed-by: Christoffer Jansson <jansson@webrtc.org>