Update dependency ch.qos.logback:logback-classic to v1.3.12 [SECURITY]

Author: renovate[bot]

jmemcached-server/pom.xml

@@ -147,7 +147,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
+            <version>1.3.12</version>
         </dependency>
         <dependency>
             <groupId>net.devstudy</groupId>