cargo ci dlls -> cargo regen csharp dlls

[bfops]

Description of Changes

Just moving this command in preparation to create a lot more cargo regen commands.

• master
  • [This PR] cargo ci dlls -> cargo regen csharp dlls
    • #4971 Translate some bash scripts to Rust
      • #4921 CI - cargo test runs C# and TypeScript tests
        • #4948 CI - Run unity tests through cargo test

API and ABI breaking changes

None

Expected complexity level and risk

1

Testing

• CI still passes