As updates are entities in Home Assistant, it means one can automate it; including automating the installation of updates.
There are multiple Blueprints available that give you this functionality in an iffy, for example:
Besides the comment above by Tom, which is also correct.
Luckily we make everything flexible enough to allow for things like this, so everybody can make up their own minds, schedules, and usecases.
…/Frenck