fix VersionTest.testCoreVersionGet()

Change-Id: Ib3a865ecd60fc92d0912f3af913bc5ca8e216773
diff --git a/hugegraph-core/src/main/java/com/baidu/hugegraph/version/CoreVersion.java b/hugegraph-core/src/main/java/com/baidu/hugegraph/version/CoreVersion.java
index d8e845d..4ff12ab 100644
--- a/hugegraph-core/src/main/java/com/baidu/hugegraph/version/CoreVersion.java
+++ b/hugegraph-core/src/main/java/com/baidu/hugegraph/version/CoreVersion.java
@@ -33,7 +33,7 @@
 
     // The second parameter of Version.of() is for IDE running without JAR
     public static final Version VERSION = Version.of(CoreVersion.class,
-                                                     "0.12.0");
+                                                     "0.13.0");
 
     public static final String GREMLIN_VERSION = "3.4.3";