TEMPORARILY assign `gitlab-org-docker` to `shared-runners-manager-X`

TL;DR

Currently all CI jobs run within GitLab-org projects and forks usually do run against shared-runners-manager-X. This makes our projects to use a general purpose runners for our projects, where rather we should use our own.

Since we work updating all our projects to follow the common pattern of using GitLab-org runners only for running GitLab-org projects we need to enable some way to indicate a docker-specific runners needed.

This ideally needs to be solved long-term by https://gitlab.com/gitlab-com/gl-infra/infrastructure/-/issues/9684, but to not block creating documentation and updating all our projects we should temporarily assign additional tag to shared-runners-manager-X the gitlab-org-docker

Proposal

Till we close the https://gitlab.com/gitlab-com/gl-infra/infrastructure/-/issues/9684, assign to all shared-runners-manager-X the gitlab-org-docker.

This unblocks creating documentation and updating all our projects to use gitlab-org-docker to indicate a type of runner to use.