Bump ch.qos.logback:logback-classic from 1.5.7 to 1.5.15 in /e2e-tests (#1032)

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback) from 1.5.7 to 1.5.15.
- [Commits](qos-ch/logback@v_1.5.7...v_1.5.15)

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

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

Author: dependabot[bot]

e2e-tests/build.gradle

@@ -22,7 +22,7 @@ dependencies {
     testImplementation 'org.awaitility:awaitility:4.2.2'
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.11.0'
     testImplementation "org.assertj:assertj-core:3.26.3"
-    testImplementation 'ch.qos.logback:logback-classic:1.5.7'
+    testImplementation 'ch.qos.logback:logback-classic:1.5.15'
     testImplementation 'org.xmlunit:xmlunit-assertj3:2.10.0'
     testImplementation 'org.apache.httpcomponents.client5:httpclient5:5.3.1'