upd to velocypack 2.3.1

Author: rashtao

pom.xml

@@ -180,6 +180,12 @@
             <artifactId>junit</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-core</artifactId>
+            <version>2.11.0</version>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>org.hamcrest</groupId>
             <artifactId>hamcrest-all</artifactId>
@@ -224,7 +230,7 @@
             <dependency>
                 <groupId>com.arangodb</groupId>
                 <artifactId>velocypack</artifactId>
-                <version>2.3.0</version>
+                <version>2.3.1</version>
             </dependency>
             <dependency>
                 <groupId>org.slf4j</groupId>