Merge pull request #1720 from OSGP/dependabot/maven/logback.version-1.5.21

Bump logback.version from 1.5.19 to 1.5.21

Author: loesimmens

super/pom.xml

@@ -107,7 +107,7 @@ SPDX-License-Identifier: Apache-2.0
     <fmt-maven-plugin.version>2.29</fmt-maven-plugin.version>
     <apache.activemq.version>6.1.6</apache.activemq.version>
     <apache.commons.schema>2.3.2</apache.commons.schema>
-    <logback.version>1.5.19</logback.version>
+    <logback.version>1.5.21</logback.version>
     <maven.clean.plugin.version>3.5.0</maven.clean.plugin.version>
     <maven.compiler.plugin.version>3.13.0</maven.compiler.plugin.version>
     <openmuc.jdlms.version>1.8.0</openmuc.jdlms.version>