The freshclam.dat file shouldn't be in the Docker images or else
everyone using the image will have the same UUID.
This commit deletes it after each update.
To reduce the need for constant database updates, also push a docker
image containing the virus database.
Ideally, this script is called every time a major virus database update
happens, but as that requires integration with other systems, lets start
by having a scheduled update.
To do this a github action workflow was added on a schedule that runs
once a month. It does require the proper secrets to be setup however and
made accessible.
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>