Update Jarek to Pajamas maintainer

Jarek Ostrowskirequested to merge
jareko-master-patch-66525 into master

Update Jarek to maintainer for Pajamas.

Trainee maintainer issue: #6934 (closed)

MR for Pajamas CODEOWNERS: gitlab-org/gitlab-services/design.gitlab.com!2623 (merged)

Edited by Jarek Ostrowski

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