Bump logback-core from 1.1.7 to 1.2.0 in /its/it-tests

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

its/it-tests/pom.xml

@@ -12,7 +12,7 @@
 
   <properties>
     <jetty.version>9.4.35.v20201120</jetty.version>
-    <logback.version>1.1.7</logback.version>
+    <logback.version>1.2.0</logback.version>
     <sonar.skip>true</sonar.skip>
     <skipTests>true</skipTests>
   </properties>