chore(`forge doc`): update mdbook to 0.5.2

[zerosnacks]

Component

Forge

Describe the feature you would like

We are currently still using version 0.4, there have been a number of breaking changes that need to be sorted out. Particularly mdbook crate is now a bin, not a lib and therefore fails to build.

See: https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md#05-migration-guide

Additional context

No response

[Dhananjay0719]

Hi! I’d like to work on this issue if it’s still available.
Please let me know if there’s any guidance or preferred approach.