spring-kafka v3.1.6

## ⭐ 新功能

- 添加跟踪头以映射到字符串 [#3288](https://github.com/spring-projects/spring-kafka/issues/3288)

## 🔨 依赖升级

- 将 org.springframework.data:spring-data-bom 从 2023.1.6 升级到 2023.1.7 [#3316](https://github.com/spring-projects/spring-kafka/pull/3316)
- 将 io.projectreactor:reactor-bom 从 2023.0.6 升级到 2023.0.7 [#3315](https://github.com/spring-projects/spring-kafka/pull/3315)
- 将 org.springframework:spring-framework-bom 从 6.1.8 升级到 6.1.9 [#3314](https://github.com/spring-projects/spring-kafka/pull/3314)
- 将 io.micrometer:micrometer-tracing-bom 从 1.2.6 升级到 1.2.7 [#3313](https://github.com/spring-projects/spring-kafka/pull/3313)
- 将 io.micrometer:micrometer-bom 从 1.12.6 升级到 1.12.7 [#3312](https://github.com/spring-projects/spring-kafka/pull/3312)
- 将 org.springframework:spring-framework-bom 从 6.1.7 升级到 6.1.8 [#3279](https://github.com/spring-projects/spring-kafka/pull/3279)