Bump ch.qos.logback:logback-classic from 1.3.3 to 1.4.8

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback) from 1.3.3 to 1.4.8.
- [Commits](qos-ch/logback@v_1.3.3...v_1.4.8)

---
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>

gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 pitest = "1.11.7"
 lombok = "1.18.26"
 junit = "5.9.2"
-logback = "1.3.3"
+logback = "1.4.8"
 commons-io = "2.7"
 github-api = "1.314"
 jgit = "5.10.0.202012080955-r"