nixos/lighthouse: use lib.getExe (validator_client)

Changed files
+1 -1
nixos
modules
services
blockchain
ethereum
+1 -1
nixos/modules/services/blockchain/ethereum/lighthouse.nix
···
# make sure the chain data directory is created on first run
mkdir -p ${cfg.validator.dataDir}/${cfg.network}
-
${cfg.package}/bin/lighthouse validator_client \
+
${lib.getExe cfg.package} validator_client \
--network ${cfg.network} \
--beacon-nodes ${lib.concatStringsSep "," cfg.validator.beaconNodes} \
--datadir ${cfg.validator.dataDir}/${cfg.network} \