Trivy scan for storage service container should be run regularly in CI

We are currently running the Trivy scan for the storage service container within the Dockerfile, which can cause the container to fail to build. Instead we should scan the container in a separate Github actions workflow regularly, one a week for example.

_Originally posted by @marcelamelara in https://github.com/IntelLabs/atlas-cli/pull/44#discussion_r2243903693_