Upgrade to Cassandra Driver 3.1.4

Closes gh-8368

spring-boot-dependencies/pom.xml

@@ -53,7 +53,7 @@
 		<atomikos.version>3.9.3</atomikos.version>
 		<bitronix.version>2.1.4</bitronix.version>
 		<caffeine.version>2.3.5</caffeine.version>
-		<cassandra-driver.version>3.1.3</cassandra-driver.version>
+		<cassandra-driver.version>3.1.4</cassandra-driver.version>
 		<classmate.version>1.3.3</classmate.version>
 		<commons-beanutils.version>1.9.3</commons-beanutils.version>
 		<commons-collections.version>3.2.2</commons-collections.version>