Bump ch.qos.logback:logback-classic from 1.2.3 to 1.5.15

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback) from 1.2.3 to 1.5.15.
- [Commits](qos-ch/logback@v_1.2.3...v_1.5.15)

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

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

slf4j/build.gradle

@@ -10,7 +10,7 @@ dependencies {
     implementation group: 'org.slf4j', name: 'slf4j-api', version: '1.7.30'
 
     // logback classic is used to capture events in tests
-    testImplementation group: 'ch.qos.logback', name: 'logback-classic', version: '1.2.3'
+    testImplementation group: 'ch.qos.logback', name: 'logback-classic', version: '1.5.15'
 
 
     testImplementation(libs.junit)