Fix broken FOSS jest tests

With https://gitlab.com/gitlab-org/gitlab/-/merge_requests/84121 a few
things got refactored, and a lot of things moved to FOSS. One of the
specs for the EE Only `IncidentMetricTab` was moved to FOSS as well.
Moving the spec back to EE fixes the issue.

ee/spec/frontend/issues/show/components/incidents/incident_tabs_spec.js

@@ -51,6 +51,7 @@ describe('Incident Tabs component', () => {
   };
 
   const findTimelineTab = () => wrapper.find('[data-testid="timeline-events-tab"]');
+  const findMetricsTab = () => wrapper.find('[data-testid="metrics-tab"]');
 
   describe('incident timeline tab', () => {
     beforeEach(() => {
@@ -74,4 +75,18 @@ describe('Incident Tabs component', () => {
       expect(findTimelineTab().exists()).toBe(false);
     });
   });
+
+  describe('upload metrics feature available', () => {
+    it('shows the metric tab when metrics are available', () => {
+      mountComponent({}, { provide: { uploadMetricsFeatureAvailable: true } });
+
+      expect(findMetricsTab().exists()).toBe(true);
+    });
+
+    it('hides the tab when metrics are not available', () => {
+      mountComponent({}, { provide: { uploadMetricsFeatureAvailable: false } });
+
+      expect(findMetricsTab().exists()).toBe(false);
+    });
+  });
 });

spec/frontend/issues/show/components/incidents/incident_tabs_spec.js

@@ -58,7 +58,6 @@ describe('Incident Tabs component', () => {
 
   const findTabs = () => wrapper.findAll(GlTab);
   const findSummaryTab = () => findTabs().at(0);
-  const findMetricsTab = () => wrapper.find('[data-testid="metrics-tab"]');
   const findAlertDetailsTab = () => wrapper.find('[data-testid="alert-details-tab"]');
   const findAlertDetailsComponent = () => wrapper.find(AlertDetailsTable);
   const findDescriptionComponent = () => wrapper.find(DescriptionComponent);
@@ -112,20 +111,6 @@ describe('Incident Tabs component', () => {
     });
   });
 
-  describe('upload metrics feature available', () => {
-    it('shows the metric tab when metrics are available', () => {
-      mountComponent({}, { provide: { uploadMetricsFeatureAvailable: true } });
-
-      expect(findMetricsTab().exists()).toBe(true);
-    });
-
-    it('hides the tab when metrics are not available', () => {
-      mountComponent({}, { provide: { uploadMetricsFeatureAvailable: false } });
-
-      expect(findMetricsTab().exists()).toBe(false);
-    });
-  });
-
   describe('Snowplow tracking', () => {
     beforeEach(() => {
       jest.spyOn(Tracking, 'event');