[Detection Engine] Prevent ML job status warning from being displayed…

… for non-ML rule types (#189003)

Followup to #188267. A demo
instance with these changes can be found
[here](https://rylnd-pr-189003-fix-sticky-ml-warning.kbndev.co/app/security/rules/create).

When not all ML jobs are started, we display a message conveying that
the list of suppression fields might not be complete. In the case of a
non-ML rule, this warning isn't helpful and should be hidden. It also
only shows the warning if one more more ML jobs have been selected.

x-pack/plugins/security_solution/public/detection_engine/rule_creation_ui/components/step_define_rule/index.tsx

@@ -209,6 +209,9 @@ const StepDefineRuleComponent: FC<StepDefineRuleProps> = ({
     mlSuppressionFields,
   } = useMLRuleConfig({ machineLearningJobId });
 
+  const isMlSuppressionIncomplete =
+    isMlRule(ruleType) && machineLearningJobId?.length > 0 && !allJobsStarted;
+
   const esqlQueryRef = useRef<DefineStepRule['queryBar'] | undefined>(undefined);
 
   const isAlertSuppressionLicenseValid = license.isAtLeast(MINIMUM_LICENSE_FOR_SUPPRESSION);
@@ -1087,7 +1090,7 @@ const StepDefineRuleComponent: FC<StepDefineRuleProps> = ({
                     disabledText: suppressionGroupByDisabledText,
                   }}
                 />
-                {!allJobsStarted && (
+                {isMlSuppressionIncomplete && (
                   <EuiText size="xs" color="warning">
                     {i18n.MACHINE_LEARNING_SUPPRESSION_INCOMPLETE_LABEL}
                   </EuiText>