[MH-11812] Fix security configuration for ROLE_UI_TASKS_CREATE - Opencast

Details

Severity:
Incorrectly Functioning With Workaround
Steps to reproduce:

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Steps to reproduce:
See discussion on https://groups.google.com/a/opencast.org/forum/#!topic/users/HlIjx2danDg

Problem:
ROLE_UI_TASKS_CREATE enables Actions->"Start Task". But to make that actually work, the schedule task modal needs to query the list of available workflows.
The current security configuration does however block this since ROLE_UI_TASKS_CREATE is not allowed to access /admin-ng/event/new/processing?tags=archive-ng

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Steps to reproduce: See discussion on https://groups.google.com/a/opencast.org/forum/#!topic/users/HlIjx2danDg Problem: ROLE_UI_TASKS_CREATE enables Actions->"Start Task". But to make that actually work, the schedule task modal needs to query the list of available workflows. The current security configuration does however block this since ROLE_UI_TASKS_CREATE is not allowed to access /admin-ng/event/new/processing?tags=archive-ng