Update gitlab-development-kit digest to 97e6c4d

This MR contains the following updates:

Package	Update	Change
gitlab-development-kit	digest	83323a2 -> 97e6c4d

MR created with the help of gitlab-org/frontend/renovate-gitlab-bot

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qa/gdk/Dockerfile.gdk

-ARG GDK_SHA=874a3c2031ec4e510be58a74f0972c67469bec7e
+ARG GDK_SHA=97e6c4d4365ff0ec8079c1c0fc30bf7e55cf1685
 # Use tag prefix when running on 'stable' branch to make sure 'protected' image is used which is not deleted by registry cleanup
 ARG GDK_BASE_TAG_PREFIX