Release not failing when restricted deps are found

[rafaelmag110]

Bug Report

Describe the Bug

Check this run here: https://github.com/eclipse-edc/Technology-Aws/actions/runs/17068311475/job/48390658512

Restricted dependencies are found but the workflow doesn't seem to be storing the outcome of the grep in the RESTRICTED file, hence the rest of the workflow is not working as expected.

[ndr-brt]

good catch, thanks for reporting