Fix version

Dependencies

• [2] X7IAG7JT Simplify running nix-shell
• [3] YQWH4POV * Simplify.
• [4] T4LLYESZ * Nix expression for building Hydra.
• [5] HPIJ35SG
• [6] UMEQXUUH hydra: fix name of build jobset
• [7] 3PNG7NIB Remove trailing whitespace
• [8] U2BNO3C5 hydra: fix build job

Change contents

• replacement in release.nix at line 113
  [3.42]→[3.0:22](∅→∅)
  − name = "hydra";
  [3.42]

  [2.444]
  + name = "hydra-${version}";