Fix type

Dependencies

• [2] V4R3SIRM hydra-module.nix: Don't use a password
• [3] 3PNG7NIB Remove trailing whitespace
• [4] KMPLMG7T hydra-module.nix: Cleanup
• [5] 7XOH2DGH hydra-module.nix: Give types to options
• [6] D3MDJONY

Change contents

• replacement in hydra-module.nix at line 44
  [3.1082]→[3.28:57](∅→∅)
  − type = types.string;
  [3.1082]

  [2.0]
  + type = types.str;