Bump mongo-java-driver from 3.9.1 to 3.10.1 in /core

Bumps [mongo-java-driver](https://github.com/mongodb/mongo-java-driver) from 3.9.1 to 3.10.1.
- [Release notes](https://github.com/mongodb/mongo-java-driver/releases)
- [Commits](mongodb/mongo-java-driver@r3.9.1...r3.10.1)

Signed-off-by: dependabot[bot] <support@dependabot.com>

core/build.gradle

@@ -119,7 +119,7 @@ dependencies {
 
     testCompile 'redis.clients:jedis:3.0.1'
     testCompile 'com.rabbitmq:amqp-client:5.6.0'
-    testCompile 'org.mongodb:mongo-java-driver:3.9.1'
+    testCompile 'org.mongodb:mongo-java-driver:3.10.1'
     testCompile ('org.mockito:mockito-core:2.24.5') {
         exclude(module: 'hamcrest-core')
     }