Update dependency ch.qos.logback:logback-classic to v1.2.6

Author: renovate-bot

pom.xml

@@ -127,7 +127,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.5</version>
+            <version>1.2.6</version>
             <scope>test</scope>
             <exclusions>
                 <exclusion>