niklas-uhl/BriefKAsten: v0.3.0

What's Changed Fix UB in flush_buffer_impl. by @niklas-uhl in https://github.com/niklas-uhl/BriefKAsten/pull/16 Fix/indirection by @niklas-uhl in https://github.com/niklas-uhl/BriefKAsten/pull/17 feat(aggregation): Add tuple-based serializer with safety checks by @niklas-uhl in https://github.com/niklas-uhl/BriefKAsten/pull/18 fix(config): topology-aware buffer defaults and std::optional Config fields by @niklas-uhl in https://github.com/niklas-uhl/BriefKAsten/pull/19 Feat/configurable receiver type by @niklas-uhl in https://github.com/niklas-uhl/BriefKAsten/pull/20 fix(indirection): drain second-hop buffer regardless of first-hop activity by @niklas-uhl in https://github.com/niklas-uhl/BriefKAsten/pull/21 Full Changelog: https://github.com/niklas-uhl/BriefKAsten/compare/v0.2.2...v0.3.0