core/tests: Rename "paperless" to "paperless-ng"

Fixes the following eval error:

  The option `services.paperless' can no longer be used since it's been
  removed. The paperless module has been removed as the upstream project
  died.
  Users should migrate to the paperless-ng module (services.paperless-ng).
  More information can be found in the NixOS 21.11 release notes.

We don't use paperless in any machines but since we're testing for NixOS
module option definitions, we're running into the eval error above.
Switching to paperless-ng should get rid of them.

Signed-off-by: aszlig <aszlig@nix.build>

0 files changed, 0 insertions, 0 deletions