Upgrade Couchbase Client to 3.6.3.

Closes #1960

Author: schauder

pom.xml

@@ -18,7 +18,7 @@
     </parent>
 
     <properties>
-        <couchbase>3.6.0</couchbase>
+        <couchbase>3.6.3</couchbase>
         <couchbase.osgi>3.6.0</couchbase.osgi>
         <springdata.commons>3.3.4-SNAPSHOT</springdata.commons>
         <java-module-name>spring.data.couchbase</java-module-name>