Allow .deb Release Job to Publish Flat Repository Format

[hollowaykeanho]

Description

Debian Repository Format Specification (https://wiki.debian.org/DebianRepository/Format) specifies that it can recognize and implement flat repository format. This is very useful for GitHub/GitLab Release page.

Expected Behavior

.deb repository can publish both flat and conventional modes.

Current Behavior

.deb repository can only publish conventional mode.

Associated Data Files

No response

[hollowaykeanho]

lifted distributions restricted values.

[hollowaykeanho]

Implemented in 6177cca.