Merge pull request #285 from rabbitmq/dependabot/maven/spotbugs.version-4.9.4

Bump spotbugs.version from 4.9.3 to 4.9.4

Author: acogoluegnes

pom.xml

@@ -78,7 +78,7 @@
     <spotless.version>2.46.1</spotless.version>
     <google-java-format.version>1.21.0</google-java-format.version>
     <spotbugs-maven-plugin.version>4.9.3.2</spotbugs-maven-plugin.version>
-    <spotbugs.version>4.9.3</spotbugs.version>
+    <spotbugs.version>4.9.4</spotbugs.version>
     <!-- for documentation -->
     <broker.version>4.0</broker.version>
     <!-- to sign artifacts when releasing -->