Bump logback.test from 1.5.8 to 1.5.15

Bumps `logback.test` from 1.5.8 to 1.5.15.

Updates `ch.qos.logback:logback-core` from 1.5.8 to 1.5.15
- [Commits](qos-ch/logback@v_1.5.8...v_1.5.15)

Updates `ch.qos.logback:logback-classic` from 1.5.8 to 1.5.15
- [Commits](qos-ch/logback@v_1.5.8...v_1.5.15)

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-core
  dependency-type: direct:development
  update-type: version-update:semver-patch
- dependency-name: ch.qos.logback:logback-classic
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -37,7 +37,7 @@
         <jodatime>2.13.0</jodatime>
         <lombok>1.18.36</lombok>
         <awaitility>4.2.2</awaitility>
-        <logback.test>1.5.8</logback.test>
+        <logback.test>1.5.15</logback.test>
         <hibernate.validator>8.0.1.Final</hibernate.validator>
         <netty.version>4.1.115.Final</netty.version>
         <kryo.version>5.6.2</kryo.version>