Change zoekt-ci-image to be versioned zoekt-ci-image-1.0

What does this MR do and why?

Per gitlab!108937 (comment 1257390002)

This renames zoekt-ci-image so that we can have a versioned zoekt-ci-image-1.0. This will allow us to make changes and bump the version if we end up with breaking changes.

This still targets a fork of Zoekt because we're waiting on 1 more PR to be merged before we can target the main repository. At this point we'll change the cloning command and check out a stable SHA or tag from the main repo rather than tracking a branch like this is doing now.

Checklist

• (If applicable) Add patches if required for upgrading Ruby version in https://gitlab.com/gitlab-org/gitlab-build-images/-/tree/master/patches/ruby.