Merge pull request #674 from rabbitmq/dependabot/maven/logback.version-1.5.6

Bump logback.version from 1.3.14 to 1.5.6

Author: michaelklishin

pom.xml

@@ -64,7 +64,7 @@
     <jgroups-kubernetes.version>2.0.2.Final</jgroups-kubernetes.version>
     <gson.version>2.10.1</gson.version>
     <resilience4j.version>2.1.0</resilience4j.version>
-    <logback.version>1.3.14</logback.version>
+    <logback.version>1.5.6</logback.version>
     <junit.jupiter.version>5.10.2</junit.jupiter.version>
     <mockito.version>5.11.0</mockito.version>
     <assertj.version>3.25.3</assertj.version>