Merge pull request #136 from rabbitmq/dependabot/maven/ch.qos.logback-logback-classic-1.5.21

Bump ch.qos.logback:logback-classic from 1.5.20 to 1.5.21

Author: acogoluegnes

pom.xml

@@ -13,7 +13,7 @@
         <java.version>1.8</java.version>
         <perf-test.version>2.19.0</perf-test.version>
         <spring-boot-maven-plugin.version>3.5.7</spring-boot-maven-plugin.version>
-        <logback.version>1.5.20</logback.version>
+        <logback.version>1.5.21</logback.version>
         <junit.jupiter.version>6.0.1</junit.jupiter.version>
         <maven-compiler-plugin.version>3.14.1</maven-compiler-plugin.version>
         <maven-surefire-plugin.version>3.5.4</maven-surefire-plugin.version>