Bump io.prometheus:prometheus-metrics-bom from 1.4.1 to 1.4.2 (micrometer-metrics#6830)

Bumps [io.prometheus:prometheus-metrics-bom](https://github.com/prometheus/client_java) from 1.4.1 to 1.4.2.
- [Release notes](https://github.com/prometheus/client_java/releases)
- [Commits](prometheus/client_java@v1.4.1...v1.4.2)

---
updated-dependencies:
- dependency-name: io.prometheus:prometheus-metrics-bom
  dependency-version: 1.4.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -61,7 +61,7 @@ newrelic-api = "5.14.0"
 # Kotlin 1.7 sample will fail from OkHttp 4.12.0 due to okio dependency being a Kotlin 1.9 module
 okhttp = "4.11.0"
 postgre = "42.7.8"
-prometheus = "1.4.1"
+prometheus = "1.4.2"
 prometheusSimpleClient = "0.16.0"
 reactor = "2022.0.22"
 rest-assured = "5.5.6"