Use provided source files to generate docker image.
Use Android app release: https://github.com/MarkoDojkic/SingiAttend-Android/releases/tag/v2.0.3
Use iOS app release: https://github.com/MarkoDojkic/SingiAttend-iOS/releases/tag/v2.0.3
Full Changelog: https://github.com/MarkoDojkic/SingiAttend/commits/v2.4.6-docker