Upgrade to Lettuce 6.1.8.RELEASE.

Closes #2281

Author: mp911de

pom.xml

@@ -22,7 +22,7 @@
 		<beanutils>1.9.4</beanutils>
 		<xstream>1.4.19</xstream>
 		<pool>2.9.0</pool>
-		<lettuce>6.1.6.RELEASE</lettuce>
+		<lettuce>6.1.8.RELEASE</lettuce>
 		<jedis>3.7.1</jedis>
 		<multithreadedtc>1.01</multithreadedtc>
 		<netty>4.1.72.Final</netty>