telemetry(amazonq): Adding requestId for uploadArtifactToS3 in amazonq_utgGenerateTests event (#6598)

## Problem
- IDE does not emit requestId if it fails at `uploadArtifactToS3` in
`/test`

## Solution
- Added requestId for Test Generation without impacting the `/review`
- `requestId` is stored in /test session and emits if something fails in
the test generation workflow.
- Helps in debugging the root cause for the
`UploadTestArtifactToS3Error: "PUT" request failed with code "403"`
error in RTS logs.

---

- Treat all work as PUBLIC. Private `feature/x` branches will not be
squash-merged at release time.
- Your code changes must meet the guidelines in
[CONTRIBUTING.md](https://github.com/aws/aws-toolkit-vscode/blob/master/CONTRIBUTING.md#guidelines).
- License: I confirm that my contribution is made under the terms of the
Apache 2.0 license.

Author: laileni-aws

packages/core/src/codewhisperer/service/securityScanHandler.ts

@@ -39,12 +39,13 @@ import {
     SecurityScanTimedOutError,
     UploadArtifactToS3Error,
 } from '../models/errors'
-import { getTelemetryReasonDesc } from '../../shared/errors'
+import { getTelemetryReasonDesc, isAwsError } from '../../shared/errors'
 import { CodeWhispererSettings } from '../util/codewhispererSettings'
 import { detectCommentAboveLine } from '../../shared/utilities/commentUtils'
 import { runtimeLanguageContext } from '../util/runtimeLanguageContext'
 import { FeatureUseCase } from '../models/constants'
 import { UploadTestArtifactToS3Error } from '../../amazonqTest/error'
+import { ChatSessionManager } from '../../amazonqTest/chat/storages/chatSession'
 
 export async function listScanResults(
     client: DefaultCodeWhispererClient,
@@ -386,6 +387,9 @@ export async function uploadArtifactToS3(
         } else {
             errorMessage = errorDesc ?? defaultMessage
         }
+        if (isAwsError(error) && featureUseCase === FeatureUseCase.TEST_GENERATION) {
+            ChatSessionManager.Instance.getSession().startTestGenerationRequestId = error.requestId
+        }
         throw isCodeScan ? new UploadArtifactToS3Error(errorMessage) : new UploadTestArtifactToS3Error(errorMessage)
     }
 }