Re: [PATCH v4 0/3] MR7173: rtworkq: Support putting work on RTWQ_CALLBACK_QUEUE_UNDEFINED.

[Conor McCarthy (＠cmccarthy)]

Added `enum rtwq_callback_queue_id` definition to rtworkq tests since !7174 adds them anyway.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/7173#note_93417