hydra-eval-jobset: Pass --no-allow-import-from-derivation

https://github.com/NixOS/nixpkgs/issues/87592

Created by  Eelco Dolstra  on May 12, 2020
LU64AZJSURRLPLMQOMULECWZ3JB2ZOYAT3QMO65UVCLD5GYATGJQC
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