Bump logback-classic from 1.1.11 to 1.2.0 in /tracer-test/logback-test (#439)

Bump logback-classic from 1.1.11 to 1.2.0

Author: dependabot[bot]

tracer-test/logback-test/pom.xml

@@ -19,7 +19,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.1.11</version>
+            <version>1.2.0</version>
         </dependency>
 
         <dependency>