jni: Upgrade NFD/ndn-cxx to version 0.6.5

Change-Id: If390a5bd4df99e36d84c04d6c93c720d7b184d73
diff --git a/build.gradle b/build.gradle
index 3904604..8c7755a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,7 +9,7 @@
         }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.3'
+        classpath 'com.android.tools.build:gradle:3.3.1'
         // classpath 'net.named-data.playground:play-publisher:1.2.0-2-SNAPSHOT'
         classpath 'com.github.triplet.gradle:play-publisher:1.2.0'