The ansible upstream source (which provides community modules/collections for Ansible) is developed in correlation with ansible-core (for compatibility matters).
However, they do not share a similar/synced version scheme nor have any mechanism that would clearly indicate this when packaging it; apart from a note in their changelogs (e.g. from the changelog linked: "Ansible 10.3.0 depends on ansible-core 2.17.3 [...]").

In other words, ansible new releases silently depend on the latest ansible-core version available at the time.
To put it simply, ansible new releases should always be built against an up to date version of ansible-core. Building new ansible releases against outdated versions of ansible-core would inevitably create incompatibility issues for some community modules.

Fortunately, upstream usually syncs the releases of new ansible and ansible-core versions. They are usually released a few hours apart (with ansible-core always being released first).

As a matter of precaution, it is appropriate to maintain both ansible and ansible-core as one package group (e.g. package, release and move new versions of those packages accross repositories together).