Update dependency ch.qos.logback:logback-classic to v1.6.6

Author: renovate[bot]

pom.xml

@@ -87,7 +87,7 @@
             <dependency>
                 <groupId>ch.qos.logback</groupId>
                 <artifactId>logback-classic</artifactId>
-                <version>1.6.5</version>
+                <version>1.6.6</version>
             </dependency>
             <dependency>
                 <groupId>javax.servlet</groupId>