Upgrade Guava library due to GuavaCompatibility errors

15:20:55.917 [main] DEBUG c.d.driver.core.GuavaCompatibility - Error while checking existence of method Futures.transformAsync
java.lang.NoSuchMethodException: com.google.common.util.concurrent.Futures.transformAsync(com.google.common.util.concurrent.ListenableFuture, com.google.common.util.concurrent.AsyncFunction)
        at java.lang.Class.getMethod(Class.java:1786) ~[na:1.8.0_242]
        at com.datastax.driver.core.GuavaCompatibility.methodExists(GuavaCompatibility.java:253) [debezium-connector-cassandra-1.1.0.Final-jar-with-dependencies.jar:1.1.0.Final]
        at com.datastax.driver.core.GuavaCompatibility.isGuava_19_0_OrHigher(GuavaCompatibility.java:225) [debezium-connector-cassandra-1.1.0.Final-jar-with-dependencies.jar:1.1.0.Final]
        at com.datastax.driver.core.GuavaCompatibility.selectImplementation(GuavaCompatibility.java:131) [debezium-connector-cassandra-1.1.0.Final-jar-with-dependencies.jar:1.1.0.Final]
        at com.datastax.driver.core.GuavaCompatibility.<clinit>(GuavaCompatibility.java:52) [debezium-connector-cassandra-1.1.0.Final-jar-with-dependencies.jar:1.1.0.Final]
        at com.datastax.driver.core.Cluster.<clinit>(Cluster.java:71) [debezium-connector-cassandra-1.1.0.Final-jar-with-dependencies.jar:1.1.0.Final]
        at io.debezium.connector.cassandra.CassandraClient.<init>(CassandraClient.java:53) [debezium-connector-cassandra-1.1.0.Final-jar-with-dependencies.jar:1.1.0.Final]
        at io.debezium.connector.cassandra.CassandraClient.<init>(CassandraClient.java:48) [debezium-connector-cassandra-1.1.0.Final-jar-with-dependencies.jar:1.1.0.Final]
        at io.debezium.connector.cassandra.CassandraConnectorContext.<init>(CassandraConnectorContext.java:39) [debezium-connector-cassandra-1.1.0.Final-jar-with-dependencies.jar:1.1.0.Final]
        at io.debezium.connector.cassandra.CassandraConnectorTask.run(CassandraConnectorTask.java:72) [debezium-connector-cassandra-1.1.0.Final-jar-with-dependencies.jar:1.1.0.Final]
        at io.debezium.connector.cassandra.CassandraConnectorTask.main(CassandraConnectorTask.java:61) [debezium-connector-cassandra-1.1.0.Final-jar-with-dependencies.jar:1.1.0.Final]