Bump ch.qos.logback:logback-core in /ocpp-v1_6-test

Bumps [ch.qos.logback:logback-core](https://github.com/qos-ch/logback) from 1.4.11 to 1.4.12.
- [Commits](qos-ch/logback@v_1.4.11...v_1.4.12)

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

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

Author: dependabot[bot]

ocpp-v1_6-test/pom.xml

@@ -77,7 +77,7 @@
 		<dependency>
 		    <groupId>ch.qos.logback</groupId>
 		    <artifactId>logback-core</artifactId>
-		    <version>1.4.11</version>
+		    <version>1.4.12</version>
             <scope>test</scope>
 		</dependency>
 		<dependency>