Fix revapi release version lookup

Author: dkropachev

pom.xml

@@ -659,7 +659,7 @@
           <version>0.15.1</version>
           <configuration>
             <outputNonIdentifyingDifferenceInfo>false</outputNonIdentifyingDifferenceInfo>
-            <versionFormat>\d+\.\d+\.\d+</versionFormat>
+            <versionFormat>\d+\.\d+\.\d+\.\d+</versionFormat>
             <oldArtifacts>
               <!-- The previous release used DataStax groupId, remove this after the next release -->
               <artifact>${project.groupId}:${project.artifactId}:RELEASE</artifact>