Bump io.micrometer:micrometer-tracing-bom from 1.6.0-M3 to 1.6.0-RC1

Bumps [io.micrometer:micrometer-tracing-bom](https://github.com/micrometer-metrics/tracing) from 1.6.0-M3 to 1.6.0-RC1.
- [Release notes](https://github.com/micrometer-metrics/tracing/releases)
- [Commits](micrometer-metrics/tracing@v1.6.0-M3...v1.6.0-RC1)

---
updated-dependencies:
- dependency-name: io.micrometer:micrometer-tracing-bom
  dependency-version: 1.6.0-RC1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -8,7 +8,7 @@ jsr305 = "3.0.2"
 logback = "1.5.19"
 micrometer = "1.16.0-M3"
 micrometer-docs-gen = "1.0.4"
-micrometer-tracing = "1.6.0-M3"
+micrometer-tracing = "1.6.0-RC1"
 protobuf = "3.25.8"
 pulsar = "4.1.1"
 pulsar-reactive = "0.7.0"