This allows GitHub Action workflows to be triggered for the PR created
by the bot.
As things are now triggered by the bot, elevated permissions of the
workflow itself are no longer required.
Signed-off-by: Hidde Beydals <hidde@hhh.computer>
This workflow automatically backports pull requests labeled with
`backport:<release series branch>`.
For example, `backport:release/v1.0.x` to backport the pull request
to a `release/v1.0.x` branch.
Signed-off-by: Hidde Beydals <hidde@hhh.computer>