Bump ch.qos.logback:logback-classic from 1.4.7 to 1.4.12 (#159)

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback) from 1.4.7 to 1.4.12.
- [Commits](qos-ch/logback@v_1.4.7...v_1.4.12)

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Frieder Reinhold <frieder.reinhold@exxeta.com>

pom.xml

@@ -137,7 +137,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.4.7</version>
+            <version>1.4.12</version>
         </dependency>
         <dependency>
             <groupId>com.google.code.gson</groupId>