Maintenance Updates

[troibe]

Why:

• The build is failing with a cachix error.
• The formatting is failing since the guidelines from ormolu changed.

What:

• Simply update the cachix version. Inspiration from: https://github.com/dmjio/miso/pull/686
• Ran ormolu --mode inplace $(find . -name '*.hs') using ormolu-0.4.0.0 to update the formatting.

Testing:

Before	After