build(deps): bump io.micrometer:micrometer-core from 1.15.2 to 1.15.4

Bumps [io.micrometer:micrometer-core](https://github.com/micrometer-metrics/micrometer) from 1.15.2 to 1.15.4.
- [Release notes](https://github.com/micrometer-metrics/micrometer/releases)
- [Commits](micrometer-metrics/micrometer@v1.15.2...v1.15.4)

---
updated-dependencies:
- dependency-name: io.micrometer:micrometer-core
  dependency-version: 1.15.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

core/pom.xml

@@ -20,7 +20,7 @@
         <ksuid.version>4.1.1</ksuid.version>
         <tsid.version>5.2.6</tsid.version>
         <ulid.version>5.2.3</ulid.version>
-        <micrometer.version>1.15.2</micrometer.version>
+        <micrometer.version>1.15.4</micrometer.version>
         <micrometer-tracing.version>1.5.2</micrometer-tracing.version>
     </properties>