Bump io.micrometer:micrometer-tracing-bom from 1.2.8 to 1.2.9 (#783)

Bumps [io.micrometer:micrometer-tracing-bom](https://github.com/micrometer-metrics/tracing) from 1.2.8 to 1.2.9.
- [Release notes](https://github.com/micrometer-metrics/tracing/releases)
- [Commits](https://github.com/micrometer-metrics/tracing/compare/v1.2.8...v1.2.9)

---
updated-dependencies:
- dependency-name: io.micrometer:micrometer-tracing-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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gradle/libs.versions.toml

@@ -7,7 +7,7 @@ jsr305 = "3.0.2"
 logback = "1.4.14"
 micrometer = "1.12.9"
 micrometer-docs-gen = "1.0.3"
-micrometer-tracing = "1.2.8"
+micrometer-tracing = "1.2.9"
 protobuf = "3.21.12"
 pulsar = "3.1.3"
 pulsar-reactive = "0.5.6"