deps: update dependency joda-time:joda-time to v2.10.6 (#123)

Author: renovate-bot

pom.xml

@@ -75,7 +75,7 @@
     <threeten.version>1.4.4</threeten.version>
     <javax.annotations.version>1.3.2</javax.annotations.version>
     <animal-sniffer.version>1.18</animal-sniffer.version>
-    <joda.version>2.10.5</joda.version>
+    <joda.version>2.10.6</joda.version>
   </properties>
 
   <dependencyManagement>