BUG: Can't connect (native) resource type with (Xhr) resource type for the same call

[SandraGeorge19]

Thanks for taking the time for reporting an issue!

###The issue
we need to link the traces with the resources that we sent as shown in the screens the traces is sent empty so we did a work around to send the traces in a native resource type in session obj using "Global.rum.startResourceLoading" method but we need a way to link them together or send traces with resources.

Steps to reproduce the issue:
start resource and send custom attributes with it using "Global.rum.startResourceLoading" method and then stop resources using "stopResourceLoading" method with the same attributes

Attributes are sent normally but the Traces for that call not sent

Datadog SDK version:

'DatadogSDK', '1.8.0'

Last working Datadog SDK version:

'DatadogSDK', '1.8.0'

Dependency Manager:

Cocoapods

Xcode version:

Xcode 14.2 (14C18)

Swift version:

5.0

Deployment Target:

iOS 12

macOS version:

macOS Ventura 13.2.1

[ganeshnj]

Duplicate of #1296

Closing.