Bug 24232: Regression tests

Bug 24232: Regression tests

This patch enhances the tests for the DELETE /biblios/:biblio_id
endpoint so more fine grained permissions are tested.

It highlights the fact that the required permissions defined on the spec
are not correcttly defined.

To test:
1. Run:
   $ kshell
  k$ prove t/db_dependent/api/v1/biblios.t
=> FAIL: Tests fail because the user (that now has subpermissions only)
does not have enough permissions for a non-existent subpermission

Signed-off-by: Kelly McElligott <kelly@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>