Bump logback from 1.5.3 to 1.5.6

Bumps `logback` from 1.5.3 to 1.5.6.

Updates `ch.qos.logback:logback-classic` from 1.5.3 to 1.5.6
- [Commits](qos-ch/logback@v_1.5.3...v_1.5.6)

Updates `ch.qos.logback:logback-core` from 1.5.3 to 1.5.6
- [Commits](qos-ch/logback@v_1.5.3...v_1.5.6)

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

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -4,7 +4,7 @@ junit = "5.10.2"
 jvm = "21"
 kotlin = "1.9.23"
 kotlinJunitTools = "0.2.3"
-logback = "1.5.3"
+logback = "1.5.6"
 mockk = "1.13.10"
 plantuml = "0.2.0"
 slf4j = "2.0.12"