Update label for fulfilment

Why is this change being made?

I though it was odd that the current linked filtered search displays no Epics so I took I updated with one that is displaying some of them: from group::fulfillment to devops:fulfilment.

before	after

Author Checklist

• Provided a concise title for the MR
• Added a description to this MR explaining the reasons for the proposed change, per say-why-not-just-what
• Assign this change to the correct DRI
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