Auto merge of #23117 - asajeffrey:mach-magicleap-package-target, r=jdm

Set the target when packaging for magicleap

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If we don't set the target during packaging, we get errors checking for gstreamer.

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes do not require tests because it fixes packaging errors.

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