Thirteenth alpha release

Reverted last change that installed git nad openssh-client with composer. This would not work for non-alpine images.

Twelveth alpha release

Together with composer we also install ssh client and git so it's able to fetch custom packages

Eleventh alpha release

• Added init script allowing to create arbitrary user
• Loop made executable
• Added possibility to deescalate command into non-root user

Tenth alpha release

Added helper script loop to keep container alive

Ninth alpha release

Use non-bash compatible syntax

Eighth alpha release

Fixes syntax error in bash entrypoint script

Seventh alpha release

Added support for debian bullseye

Sixth alpha release

Uses specific distro image versions

Fifth alpha release

Fixes GH actions syntax

Fourth alpha release

Uses github actions matrix to cover multiple variations