Introduce a custom Kaniko-based image for OCI container builds, including a wrapper script (`build.sh`) for flexible execution. Added Forgejo CI workflows for PR, branch, and tag builds, along with detailed documentation in the updated README. Licensed under Apache 2.0.
Reviewed-on: #1
Co-authored-by: Guillaume B.B. Van Hemmen <GuillaumeHemmen@noreply.git.van-hemmen.com>
Co-committed-by: Guillaume B.B. Van Hemmen <GuillaumeHemmen@noreply.git.van-hemmen.com>