Use sonar version from plugin BOM (#2624)

Author: basil

integrations/pom.xml

@@ -300,7 +300,6 @@
     <dependency>
       <groupId>org.jenkins-ci.plugins</groupId>
       <artifactId>sonar</artifactId>
-      <version>2.17.3</version>
       <scope>test</scope>
     </dependency>
     <dependency>