Update maven.resolver.build.version to v2

Author: renovate-bot

pom.xml

@@ -222,7 +222,7 @@
     <!-- Versions of Maven and Maven Resolver (both should remain in sync) used during the build
          (the one used as dependency when building and during Maven plugins executions)  -->
     <maven.build.version>3.6.3</maven.build.version>
-    <maven.resolver.build.version>1.4.1</maven.resolver.build.version>
+    <maven.resolver.build.version>2.0.13</maven.resolver.build.version>
 
     <!-- Versions of Maven and Maven Resolver embedded in XWiki runtime
          (more recent than the one used during the build to benefit from bugfixes and improvements) -->