At 10850 send device parameters from prebid to hbid endpoint

[john-bauzon-gumgum]

Type of change

• Feature

Description of change

Added 2 new parameters ifa and lmt

[Copilot]

Pull request overview

This PR extends the GumGum bidder’s ORTB2 device mapping so that additional device privacy/identifier signals are forwarded to GumGum’s HBID endpoint.

Changes:

• Add forwarding of device.lmt (limit ad tracking) into the GumGum request payload.
• Add forwarding of device.ifa (advertising identifier) into the GumGum request payload.
• Extend the existing unit test coverage for ORTB2 device mapping to assert these new fields.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
modules/gumgumBidAdapter.js	Adds lmt and ifa to _getDeviceData() so they are included in outbound bid request data when present.
test/spec/modules/gumgumBidAdapter_spec.js	Updates the ORTB2 device-data test to include lmt/ifa and assert they are passed through to bidRequest.data.

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