[maintenance_11_debian] False positive for missing security repos

[4censord]

While running adfinis.maintenance.maintenance_11_debian against a debian 12 (bookworm) host,
the role complains about missing security repos.

TASK [adfinis.maintenance.maintenance_11_debian : 11-011: Security: Are the security updates in the sources.list?] ********************************************************************************************************************************************
changed: [...] => {
    "assertion": "ansible_facts.apt_sources | selectattr('uri', 'eq', debian_sources_list_security_uri) | selectattr('suites', 'contains', debian_sources_list_security_suite) | selectattr('types', 'contains', 'deb') | selectattr('components', 'contains', 'main') | length > 0",
    "changed": true,
    "evaluated_to": false,
    "failed_when_result": false,
    "msg": "debian-security repository missing: deb http://security.debian.org/debian-security bookworm-security main"
}

But, when looking at the sources these are present:

$ cat /etc/apt/sources.list.d/debian.sources
Types: deb deb-src
URIs: mirror+file:///etc/apt/mirrors/debian.list
Suites: bookworm bookworm-updates bookworm-backports
Components: main

Types: deb deb-src
URIs: mirror+file:///etc/apt/mirrors/debian-security.list
Suites: bookworm-security
Components: main

$ cat /etc/apt/mirrors/debian-security.list 
https://deb.debian.org/debian-security

[s3lph]

As a quick workaround you can set debian_sources_list_security_uri: mirror+file:///etc/apt/mirrors/debian-security.list. Unfortunately, this won't audit the contents of that mirrorlist file. So we should probably also include special handling for the mirror+file URI schema in adfinis.facts.apt_sources_facts