feat: manifest build with buildah allowing multi-platform images

Closes #140

See merge request !168

# [7.3.0](7.2.1...7.3.0) (2025-08-25)

### Features

* multi-platform build with buildah manifest ([25cda525](25cda525))

## [7.3.1](7.3.0...7.3.1) (2025-08-26)

### Bug Fixes

* **vault:** avoid nested variable for id_token ([4ae27ccf](4ae27ccf))