Bump core.version from 4.6.0 to 4.7.1 (#162)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -49,7 +49,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <core.version>4.6.0</core.version>
+        <core.version>4.7.1</core.version>
         <java.version>1.8</java.version>
     </properties>