v2.5.0

• Please refer to https://fzyzcjy.github.io/flutter_rust_bridge/guides/miscellaneous/whats-new for what's changed in V2.
• Add commandline option for passing features to cargo expand during codegen #2284 (thanks @fmeef)
• Support providing relative paths to configuration file #2320 (thanks @patmuk)
• Use portable-atomic in frb_rust #2323 (thanks @kyrias)
• Upgrade serde yaml #2333 (thanks @atezet)
• Replace atty by std::io::IsTerminal #2332 (thanks @atezet)
• Fixes cfg wasm warnings #2329 (thanks @patmuk)
• Add docs and warning if user provides absolute rust_crate_dir #2335 (thanks @Vollbrecht)
• Use dart_output when possible for the dart fix #2340 (thanks @AlexV525)