[CSL-2343] Add missing logException to cardano-node (#2641)
[CSL-2343] Add missing logException to cardano-node (#2641)

`logException` was used in old `cardano-node`, but for some reason
is not used in new `cardano-node`.
input-output-hk/pos-haskell-prototype,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl