chore(general): Rust 2024 edition

[stanislav-tkach]

Description

• Use Rust 2024 edition.
• Update rand to the 0.9 version.

Description of Changes

The rand was updated because gen is now a keyword, so r#gen must be used instead and it is awkward.

I have applied the updated 2024 formatting in a separate commit, so the corresponding changes can easily be expected and reverted if we decide to stick with the 2021 formatting edition. Personally I like the new formatting, but the diff is rather big. The changes fall into one of the following three categories:

• Weird spaces were removed, for example:

  - oid!(1.2.840 .113549 .1 .9 .1)
  + oid!(1.2.840.113549.1.9.1)
• A different (better?) long lines splitting, for example:

  - if len != 2 {
  -     return Err(decode::Error::message(format!("Invalid length for CIP36 Key Registration voting key delegations, expected 2, got {len}")));
  - }
  + if len != 2 {
  +     return Err(decode::Error::message(format!(
  +         "Invalid length for CIP36 Key Registration voting key delegations, expected 2, got {len}"
  +     ))); 
  + }
• A slightly different sorting order for imports.

Related Pull Requests

input-output-hk/catalyst-ci#384

Please confirm the following checks

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream module

[stanislav-tkach]

This needs to be cahnged.

[stanislav-tkach]

Blocked with this issue: al8n/fmmap#7

[stevenj]

This PR is being closed, it is not to be worked on further as bumping the rust edition has not been approved or prioritized.