chore(deps-dev): bump ch.qos.logback:logback-classic

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback) from 1.5.16 to 1.5.21.
- [Release notes](https://github.com/qos-ch/logback/releases)
- [Commits](qos-ch/logback@v_1.5.16...v_1.5.21)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -131,7 +131,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.5.16</version>
+      <version>1.5.21</version>
       <scope>test</scope>
     </dependency>
   </dependencies>