chore(tx-backend): #414 test sonar issue

pom.xml

@@ -60,7 +60,7 @@ SPDX-License-Identifier: Apache-2.0
         <spotbugs-plugin.version>4.8.3.0</spotbugs-plugin.version>
         <spring-boot-maven-plugin.version>3.1.3</spring-boot-maven-plugin.version>
         <maven-project-info-reports-plugin.version>3.4.5</maven-project-info-reports-plugin.version>
-        <sonar-maven-plugin.version>3.10.0.2594</sonar-maven-plugin.version>
+        <sonar-maven-plugin.version>3.9.1.2184</sonar-maven-plugin.version>
         <maven-surefire-plugin.version>3.2.5</maven-surefire-plugin.version>
         <maven-failsafe-plugin.version>3.2.5</maven-failsafe-plugin.version>
         <maven-site-plugin.version>4.0.0-M11</maven-site-plugin.version>