[DEVOPS-652] pin hydra to the version hydra.iohk.io uses (#2522)
[DEVOPS-652] pin hydra to the version hydra.iohk.io uses (#2522)


input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype