add dockerhub metadata - Source Repository

[tbugfinder]

https://github.com/opendevstack/ods-core/blob/1b4019512d6071c15d98e79057f1c9f0f99d5f1c/.github/workflows/push-docker-image.sh#L4

Please add ods-core repo to the dockerhub metadata so that a user can easily find the image source Dockerfiles.

[clemensutschig]

@tbugfinder - want to create a PR :)?

[tbugfinder]

Basically there are about two options available:

• https://github.com/peter-evans/dockerhub-description
• https://github.com/christian-korneck/docker-pushrm

Both cannot update the description within CI due to limits in docker hub API if 2FA is in place - is 2FA configured for docker hub credentials?

Ref: https://github.com/docker/roadmap/issues/115