Cron is configured to run every night on a daily basis which is
great. However, this has potential to break all the SV pipelines
as a commit that gets merged to EIB will result in a new image
build without the SV team have chance to validate and reflect the
change to SV.
This commit configures trigger_devel workflow to run midday every
week day so the SV team can make the necessary validations and
updates accordingly.
Please note that this should be considered as a temporary fix and
an automated way to bring new EIB versions to SV should be developed
collaboratively.
