Bump ch.qos.logback:logback-classic from 1.5.5 to 1.5.6 (#355)

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback) from 1.5.5 to 1.5.6.
- [Commits](qos-ch/logback@v_1.5.5...v_1.5.6)

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

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

Author: dependabot[bot]

build.gradle

@@ -29,7 +29,7 @@ ext {
     jaxbRuntimeVersion = '2.3.3'
     junitPlatformVersion = '1.4.1'
     junitVersion = '5.10.2'
-    logbackVersion = '1.5.5'
+    logbackVersion = '1.5.6'
     mockitoVersion = '5.11.0'
 
     /* OSGi */