build(deps): bump io.micrometer:micrometer-core from 1.13.3 to 1.13.4

Bumps [io.micrometer:micrometer-core](https://github.com/micrometer-metrics/micrometer) from 1.13.3 to 1.13.4.
- [Release notes](https://github.com/micrometer-metrics/micrometer/releases)
- [Commits](micrometer-metrics/micrometer@v1.13.3...v1.13.4)

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

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

gradle/libs.versions.toml

@@ -22,7 +22,7 @@ jetty = "11.0.23"
 jetty-jakarta-servlet-api = "5.0.2"
 junit-pioneer = "2.2.0"
 jupiter = "5.11.0"
-micrometer = "1.13.3"
+micrometer = "1.13.4"
 mockito = "5.2.0"
 nimbus = "9.40"
 okhttp = "4.12.0"