rustler-0.29.1

What's Changed

• Fix NifTaggedEnum derived Encoder impl for named-field variants by @dylanburati in #547
• Exclude directories from external resources to be compatible with Elixir 1.15 by @adrienmo in #548
• Remove cfg! directives in build.rs causing cross-compilation to fail by @fabriziosestito in #555

Full Changelog: rustler-0.28.0...rustler-0.29.0