[Task]: Ensure container updates are in sync

[ikreymer]

Description

When migrating to new version, the backend container updates only when the migrations are done.
However, frontend and emails containers may update right away, resulting in potentially out of sync containers.

The frontend and emails healthcheck should check that the version matches before succeeding to ensure they update only when backend migrations are done.

This will also prevent from different versions of containers from mismatching versions being deployed as well.

Context

No response