Describe the changes in the doc and link to your dev story

New topic in Observability What's new: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.9/html-single/release_notes/index#observability-whats-new 

Provide info for the following steps:

1. - [x] Mandatory Add the required version to the Fix version/s field.

2. - [ ] Mandatory Choose the type of documentation change.

      - [x] New topic in an existing section or new section
      - [ ] Update to an existing topic

3. - [ ] Mandatory for GA content:
            
       - [ ] Add steps and/or other important conceptual information here: 

New in 2.11, the Fleet view page will display a widget titled "Update risk predictions" in the "Powered by Insights" section.

This widget will show how many (if any) update risks are present for all OCP clusters under management. Risk remediation is not available via the ACM console at this time. Users will need to use the Hybrid Cluster Console to remediate the update risks.
       
            
       - [x] Add Required access level for the user to complete the task here:

Any user is able to see the new Upgrade risks widget in Fleet view. 
       

       - [x] Add verification at the end of the task, how does the user verify success (a command to run or a result to see?)

User is able to see the widget in Fleet view
     
     
       - [x] Add link to dev story here:

https://issues.redhat.com/browse/ACM-9927