Bump ch.qos.logback:logback-classic from 1.3.14 to 1.5.6 (closes #117)

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback) from 1.3.14 to 1.5.6.
- [Commits](https://github.com/qos-ch/logback/compare/v_1.3.14...v_1.5.6)

Change-Id: I3e2fe05add5ec220caba9977906b49d2ee2b6006

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

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

Change-Id: I6244e349a9d711fc2efd8c9d17d3d13c63ea1699
diff --git a/pom.xml b/pom.xml
index 1aa7802..8c996f0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -125,7 +125,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.3.14</version>
+      <version>1.5.6</version>
       <scope>test</scope>
     </dependency>
     <dependency>