[Security Solution] Adds check for license level for rule editing callout message (#213995)

## Summary

Resolves https://github.com/elastic/kibana/issues/213983

Adds gating logic to only display the rule upgrade related warning
callout on the rule editing page if the user has the appropriate license
level, otherwise the message is irrelevant as the user wouldn't be able
to edit a prebuilt rule in the way the message refers to

### Testing

**Steps to reproduce:**

1. Use a Platinum license or any tier that does not allow prebuilt rule
updates.
2. Navigate to the Rule Management page and select a prebuilt rule with
an available update.
3. Open Rule Details page -> Edit rule settings
4. Observe the callout message is not displayed at the top of the page

NOTE: When using the enterprise license, the callout should still be
displayed

x-pack/solutions/security/plugins/security_solution/public/detection_engine/rule_creation_ui/pages/rule_editing/index.tsx

@@ -560,7 +560,7 @@ const EditRulePageComponent: FC<{ rule: RuleResponse }> = ({ rule }) => {
                         setIsRulePreviewVisible={setIsRulePreviewVisible}
                         togglePanel={togglePanel}
                       />
-                      {upgradeCallout}
+                      {isRulesCustomizationEnabled && upgradeCallout}
                       {invalidSteps.length > 0 && (
                         <EuiCallOut title={i18n.SORRY_ERRORS} color="danger" iconType="warning">
                           <FormattedMessage