## Summary
closes#92591
Create a new `HostedAgentPolicyRestrictionRelatedError` which ensures the additional text from #92591 is included in all the appropriate places, but only specified once.
#### Some current examples
* `Cannot update integrations of hosted agent policy ${id}`
* `Cannot remove integrations of hosted agent policy ${id}`
* `Cannot reassign an agent to hosted agent policy ${newAgentPolicy.id}`
#### In this PR are now
* `Cannot update integrations of hosted agent policy ${id} in Fleet because the agent policy is managed by an external orchestration solution, such as Elastic Cloud, Kubernetes, etc. Please make changes using your orchestration solution.`
* `Cannot remove integrations of hosted agent policy ${id} in Fleet because the agent policy is managed by an external orchestration solution, such as Elastic Cloud, Kubernetes, etc. Please make changes using your orchestration solution.`
* `Cannot reassign an agent to hosted agent policy ${newAgentPolicy.id} in Fleet because the agent policy is managed by an external orchestration solution, such as Elastic Cloud, Kubernetes, etc. Please make changes using your orchestration solution.`
### Checklist
- [x] [Unit or functional tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html) were updated or added to match the most common scenarios
45255425f4