Skip creation of OwnerReference if user is in a different namespace

[mortenlj]

Instead of doing a string compare on the username, check the actual namespace of the user to determine if an owner reference can be created.

I believe this should fix #2910

[zalando-robot]

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[zalando-robot]

Cannot start a pipeline due to:

No accountable user for this pipeline: no Zalando employee associated to this GitHub username

Click on pipeline status check Details link below for more information.

[FxKu]

:+1:

[idanovinda]

👍