Bump ch-qos-logback from 1.5.14 to 1.5.15

Bumps `ch-qos-logback` from 1.5.14 to 1.5.15.

Updates `ch.qos.logback:logback-classic` from 1.5.14 to 1.5.15
- [Commits](qos-ch/logback@v_1.5.14...v_1.5.15)

Updates `ch.qos.logback:logback-core` from 1.5.14 to 1.5.15
- [Commits](qos-ch/logback@v_1.5.14...v_1.5.15)

---
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] <support@github.com>

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-ch-qos-logback = "1.5.14"
+ch-qos-logback = "1.5.15"
 jakarta-websocket = "2.1.1"
 org-apache-derby = "10.16.1.1"
 org-codehaus-groovy = "3.0.19"