[Synthetics] fix script_type for monitor management telemetry

[dominiqueclarke]

Summary

Fixes Monitor Management telemetry by adding the appropriate script_type to the request body for browser monitors.

Testing

The easiest way to test this is to add a console log here

console.warn('ndjson', ndjson);

Testing inline monitors

1. Create an inline browser monitor in monitor management
2. Navigate to Kibana logs. Wait for the telemetry event to fire after about 30 seconds. Confirm that script_type is inline (You'll see two events each time)
3. Edit the same inline browser monitor.
4. Navigate to Kibana logs. Wait for the telemetry event to fire after about 30 seconds. Confirm that script_type is inline
5. Delete the same inline browser monitor
6. Navigate to Kibana logs. Wait for the telemetry event to fire after about 30 seconds. Confirm that script_type is inline

Testing recorder monitors

1. Create a recorder browser monitor in monitor management by uploading this file: https://github.com/elastic/synthetics/blob/main/examples/inline/short.js
2. Navigate to Kibana logs. Wait for the telemetry event to fire after about 30 seconds. Confirm that script_type is recorder (You'll see two events each time)
3. Edit the same recorder browser monitor.
4. Navigate to Kibana logs. Wait for the telemetry event to fire after about 30 seconds. Confirm that script_type is recorder
5. Delete the same recorder browser monitor
6. Navigate to Kibana logs. Wait for the telemetry event to fire after about 30 seconds. Confirm that script_type is recorder
   Delete any items that are not applicable to this PR.

[elasticmachine]

Pinging @elastic/uptime (Team:uptime)

[shahzad31]

@elasticmachine merge upstream

[shahzad31]

Work as expected LGTM !!

[kibana-ci]

💚 Build Succeeded

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• Commit: ed27f35
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Metrics [docs]

✅ unchanged

History

• 💚 Build #43688 succeeded 5fa8d3e
• 💔 Build #43675 failed 804e977
• 💔 Build #43475 failed 647e7da

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[kibanamachine]

💚 All backports created successfully

Status	Branch	Result
✅	8.2

Note: Successful backport PRs will be merged automatically after passing CI.

Questions ?

Please refer to the Backport tool documentation

[awahab07]

Post FF Testing

• Correctly marks inline and recorder monitor script types while generate telemetry events.