Add a config action to alter block settings

I will try to add the config action

I have added a config action 'setBlockSettings' for updating the block settings

config:
  actions:
    block.block.claro_primary_local_tasks:
      setBlockSettings:
        secondary: false

Please review. I will add the tests if the current implementation looks good.

Would recommend adding test coverage to show the solution works.

Added the tests as well. Thanks

Adding Needs change record tag, which I can try to add.

I think we could actually significantly simplify this.

ConfigEntityBase already exposes set() as a config action. This custom action is really just doing validation, which is already covered by config validation!

So you could already change block settings:

block.block.foo:
  set:
    property_name: settings
    value: ....

So do we actually need this patch at all? We could probably just close it and update our documentation, no?

phenaproxima → credited alexpott → .

Discussed in Slack with @thejimbirch and @alexpott: https://drupal.slack.com/archives/C2THUBAVA/p1740500323369529

I think we agreed that a complex config action wrapping set(), although it works, feels like the wrong approach here.

The real problem is that Block entities don't have a dedicated method to update their settings. If they did, then we'd just throw the #[ActionMethod] annotation on it, and call it a day.

So why don't we just...do that? Let's add a new method, Block::setSettings(), and expose it as a config action method. Tagging this issue for a re-title, issue summary update, and re-scope.

Since there is a 1:1 rule about classes and interfaces, we can also add BlockInterface::setSettings() too.