Bump ch.qos.logback:logback-classic from 1.3.15 to 1.5.21

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback) from 1.3.15 to 1.5.21.
- [Release notes](https://github.com/qos-ch/logback/releases)
- [Commits](qos-ch/logback@v_1.3.15...v_1.5.21)

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
  dependency-version: 1.5.21
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -7,7 +7,7 @@ junitJupiter = "5.13.4"
 junitPlatform = "1.13.4"
 kotlin = "2.2.21"
 kotlinVersionrange = "[1.6,3)"
-logback = "1.3.15"
+logback = "1.5.21"
 logbackVersionrange = "[1.2,2)"
 moshi = "1.15.2"
 moshiVersionrange = "[1.12.0,2)"