Bump logback-classic from 1.1.2 to 1.2.0 in /ocpp-v1_6-test

Bumps logback-classic from 1.1.2 to 1.2.0.

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

ocpp-v1_6-test/pom.xml

@@ -83,7 +83,7 @@
 		<dependency>
 		    <groupId>ch.qos.logback</groupId>
 		    <artifactId>logback-classic</artifactId>
-		    <version>1.1.2</version>
+		    <version>1.2.0</version>
 		    <scope>test</scope>
 		</dependency>
 		<dependency>