[9.1] [APM] Fix service_map scout test (#232217) (#232373)

# Backport

This will backport the following commits from `main` to `9.1`:
- [[APM] Fix service_map scout test
(#232217)](#232217)

<!--- Backport version: 9.6.6 -->

### Questions ?
Please refer to the [Backport tool
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<!--BACKPORT [{"author":{"name":"Sergi
Romeu","email":"[email protected]"},"sourceCommit":{"committedDate":"2025-08-20T11:20:25Z","message":"[APM]
Fix service_map scout test
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Fix service_map scout
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Fix service_map scout test
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Fix service_map scout test
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BACKPORT-->

Co-authored-by: Sergi Romeu <[email protected]>

Author: kibanamachine

x-pack/solutions/observability/plugins/apm/test/scout/ui/parallel_tests/sevice_map/service_map.spec.ts

@@ -24,7 +24,9 @@ test.describe('Service Map', { tag: ['@ess', '@svlOblt'] }, () => {
     expect(page.url()).toContain('/app/apm/service-map');
     await serviceMapPage.waitForServiceMapToLoad();
     await serviceMapPage.zoomInBtn.click();
+    await serviceMapPage.serviceMap.focus();
     await serviceMapPage.centerServiceMapBtn.click();
+    await serviceMapPage.serviceMap.focus();
     await serviceMapPage.waitForServiceMapToLoad();
   });
 
@@ -36,8 +38,11 @@ test.describe('Service Map', { tag: ['@ess', '@svlOblt'] }, () => {
     expect(page.url()).toContain('/services/opbeans-java/service-map');
     await serviceMapPage.waitForServiceMapToLoad();
     await serviceMapPage.zoomOutBtn.click();
+    await serviceMapPage.serviceMap.focus();
     await serviceMapPage.centerServiceMapBtn.click();
+    await serviceMapPage.serviceMap.focus();
     await serviceMapPage.zoomInBtn.click();
+    await serviceMapPage.serviceMap.focus();
     await serviceMapPage.waitForServiceMapToLoad();
   });