Bump prometheusVersion from 0.15.0 to 0.16.0 (#426)

Bumps `prometheusVersion` from 0.15.0 to 0.16.0.

Updates `io.prometheus:simpleclient_common` from 0.15.0 to 0.16.0

Updates `io.prometheus:simpleclient_hotspot` from 0.15.0 to 0.16.0

Updates `io.prometheus:simpleclient_pushgateway` from 0.15.0 to 0.16.0

---
updated-dependencies:
- dependency-name: io.prometheus:simpleclient_common
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.prometheus:simpleclient_hotspot
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.prometheus:simpleclient_pushgateway
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle.kts

@@ -5,7 +5,7 @@ version = "1.0"
 
 val kluentVersion = "1.73"
 val ktorVersion = "2.3.1"
-val prometheusVersion = "0.15.0"
+val prometheusVersion = "0.16.0"
 val micrometerVersion = "1.12.2"
 val kotestVersion = "5.6.2"
 val kotestExtensionsVersion = "2.0.0"