Bump io.micrometer:micrometer-bom from 1.15.0-M2 to 1.15.0-SNAPSHOT (#2986)

Bumps [io.micrometer:micrometer-bom](https://github.com/micrometer-metrics/micrometer) from 1.15.0-M2 to 1.15.0-SNAPSHOT.
- [Release notes](https://github.com/micrometer-metrics/micrometer/releases)
- [Commits](https://github.com/micrometer-metrics/micrometer/commits)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle

@@ -56,7 +56,7 @@ ext {
 	log4jVersion = '2.24.3'
 	logbackVersion = '1.5.16'
 	micrometerDocsVersion = '1.0.4'
-	micrometerVersion = '1.15.0-M2'
+	micrometerVersion = '1.15.0-SNAPSHOT'
 	micrometerTracingVersion = '1.5.0-M2'
 	mockitoVersion = '5.15.2'
 	rabbitmqStreamVersion = '0.22.0'