[8.x] [Synthetics] Fix ping heatmap regression when Inspect flag is turned off !! (#208726) (#208796)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[Synthetics] Fix ping heatmap regression when Inspect flag is turned
off !! (#208726)](https://github.com/elastic/kibana/pull/208726)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT
[{"author":{"name":"Shahzad","email":"shahzad31comp@gmail.com"},"sourceCommit":{"committedDate":"2025-01-29T16:35:52Z","message":"[Synthetics]
Fix ping heatmap regression when Inspect flag is turned off !!
(#208726)\n\n## Summary\r\n\r\nFixes
https://github.com/elastic/kibana/issues/208304 !!\r\n\r\nFix ping
heatmap regression when Inspect flag is turned off !!\r\n\r\nThis flag
is turned on auto in dev which caused an issue !!\r\n\r\nTo reproduce
the step, you can turn off the inspect flag in dev mode by\r\nremoving
`this.isDev `from this
condition\r\n\r\n\r\nhttps://github.com/elastic/kibana/blob/main/x-pack/solutions/observability/plugins/synthetics/server/lib.ts#L93\r\n\r\n###
After\r\n\r\n<img width=\"1726\"
alt=\"image\"\r\nsrc=\"https://github.com/user-attachments/assets/ad786351-37e4-4c18-b68e-695880d836e9\"\r\n/>","sha":"557cac273c70bced82f961148c4f4f86ccda0580","branchLabelMapping":{"^v9.0.0$":"main","^v8.18.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:fix","v9.0.0","backport:prev-major","Team:obs-ux-management","backport:version"],"title":"[Synthetics]
Fix ping heatmap regression when Inspect flag is turned off
!!","number":208726,"url":"https://github.com/elastic/kibana/pull/208726","mergeCommit":{"message":"[Synthetics]
Fix ping heatmap regression when Inspect flag is turned off !!
(#208726)\n\n## Summary\r\n\r\nFixes
https://github.com/elastic/kibana/issues/208304 !!\r\n\r\nFix ping
heatmap regression when Inspect flag is turned off !!\r\n\r\nThis flag
is turned on auto in dev which caused an issue !!\r\n\r\nTo reproduce
the step, you can turn off the inspect flag in dev mode by\r\nremoving
`this.isDev `from this
condition\r\n\r\n\r\nhttps://github.com/elastic/kibana/blob/main/x-pack/solutions/observability/plugins/synthetics/server/lib.ts#L93\r\n\r\n###
After\r\n\r\n<img width=\"1726\"
alt=\"image\"\r\nsrc=\"https://github.com/user-attachments/assets/ad786351-37e4-4c18-b68e-695880d836e9\"\r\n/>","sha":"557cac273c70bced82f961148c4f4f86ccda0580"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.0.0","branchLabelMappingKey":"^v9.0.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/208726","number":208726,"mergeCommit":{"message":"[Synthetics]
Fix ping heatmap regression when Inspect flag is turned off !!
(#208726)\n\n## Summary\r\n\r\nFixes
https://github.com/elastic/kibana/issues/208304 !!\r\n\r\nFix ping
heatmap regression when Inspect flag is turned off !!\r\n\r\nThis flag
is turned on auto in dev which caused an issue !!\r\n\r\nTo reproduce
the step, you can turn off the inspect flag in dev mode by\r\nremoving
`this.isDev `from this
condition\r\n\r\n\r\nhttps://github.com/elastic/kibana/blob/main/x-pack/solutions/observability/plugins/synthetics/server/lib.ts#L93\r\n\r\n###
After\r\n\r\n<img width=\"1726\"
alt=\"image\"\r\nsrc=\"https://github.com/user-attachments/assets/ad786351-37e4-4c18-b68e-695880d836e9\"\r\n/>","sha":"557cac273c70bced82f961148c4f4f86ccda0580"}}]}]
BACKPORT-->

Co-authored-by: Shahzad <shahzad31comp@gmail.com>

x-pack/solutions/observability/plugins/synthetics/server/routes/pings/ping_heatmap.ts

@@ -26,7 +26,7 @@ export const syntheticsGetPingHeatmapRoute: SyntheticsRestApiRouteFactory = () =
   handler: async ({
     syntheticsEsClient,
     request,
-  }): Promise<MonitorStatusHeatmapBucket[] | undefined> => {
+  }): Promise<{ result: MonitorStatusHeatmapBucket[] } | undefined> => {
     const { from, to, interval: intervalInMinutes, monitorId, location } = request.query;
 
     const result = await queryMonitorHeatmap({
@@ -38,6 +38,6 @@ export const syntheticsGetPingHeatmapRoute: SyntheticsRestApiRouteFactory = () =
       intervalInMinutes,
     });
 
-    return result.body.aggregations?.heatmap?.buckets as MonitorStatusHeatmapBucket[];
+    return { result: result.body.aggregations?.heatmap?.buckets as MonitorStatusHeatmapBucket[] };
   },
 });