Add API Fuzzing docker image to Secure-Binaries.gitlab-ci.yml

Problem

Secure-Binaries.gitlab-ci.yml will save and/or populate a registry with all of the secure container images. This is used for customers running an on-prem instance of GitLab. API Fuzzing's container is missing from this list CI file.

https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Security/Secure-Binaries.gitlab-ci.yml

Proposal

Add API Fuzzing's container to the CI file. Should consider how this should be done given DAST API.