unique_identifier: 1.0.4-0 in 'indigo/distribution.yaml' [bloom]

Increasing version of package(s) in repository `unique_identifier` to `1.0.4-0`:

- distro file: `indigo/distribution.yaml`
- bloom version: `0.5.4`
- previous version for package: `1.0.3-0`

## unique_id

- No changes

## unique_identifier

- No changes

## uuid_msgs

- No changes