fetch-and-launch.yml: Add results callback
requested to merge Linaro/lkft/users/katie.worton/retrigger-pipeline:update_regbot_callback into main
Add a callback from SQUAD to the retrigger pipeline which will be used
to launch the gathering of retriggered test results.
Uses the register-callback.sh script from the `common` repo to register
a callback from SQUAD to the retrigger pipeline.
This will later be used to launch the reading of results from SQUAD by
the retrigger pipeline.
Signed-off-by: Katie Worton katie.worton@linaro.org
Edited by Katie Worton