This is a follow up to #24673, we want to modify every webhook
events to follow the same pattern and consistency where branch name
should only show on opened and merged events.
7 characters are not enough for large projects, so we change
it to reasonably longer. As an example, The Linux kernel needs
at least 11 characters of sha in its shortened form to identify
a revision. We pick 11 so it should work for most of the projects.
Signed-off-by: Zixuan James Li <p359101898@gmail.com>
Joelute
Anders Kaseorg
Zixuan James Li
Christopher Chong