[SecuritySolution] [BUG] Fix risk engine enablement model privileges check (#200547)

## Summary

When the user doesn't have privileges, the modal displays the toggle
disabled but checked. So when users press "enable," it will try to
install the risk engine anyway.

After the fix, it won't try to enable the risk engine when the user
doesn't have the privileges.


Note: This bug also happens for other branches.
- [ ] backport it to main and 8.17

x-pack/plugins/security_solution/public/entity_analytics/components/entity_store/components/enablement_modal.tsx

@@ -66,6 +66,9 @@ export const EntityStoreEnablementModal: React.FC<EntityStoreEnablementModalProp
   if (!visible) {
     return null;
   }
+  const hasRiskEnginePrivileges =
+    !riskEnginePrivileges.isLoading && riskEnginePrivileges?.hasAllRequiredPrivileges;
+
   return (
     <EuiModal onClose={() => toggle(false)}>
       <EuiModalHeader>
@@ -87,11 +90,8 @@ export const EntityStoreEnablementModal: React.FC<EntityStoreEnablementModalProp
                   defaultMessage="Risk Score"
                 />
               }
-              checked={enablements.riskScore}
-              disabled={
-                riskScore.disabled ||
-                (!riskEnginePrivileges.isLoading && !riskEnginePrivileges?.hasAllRequiredPrivileges)
-              }
+              checked={enablements.riskScore && hasRiskEnginePrivileges}
+              disabled={riskScore.disabled || !hasRiskEnginePrivileges}
               onChange={() => setEnablements((prev) => ({ ...prev, riskScore: !prev.riskScore }))}
             />
           </EuiFlexItem>