Upgrade Couchbase Java SDK to 3.2.7 in branch 4.3.x. (#1430)

Closes #1428.

Author: mikereiche

pom.xml

@@ -18,8 +18,8 @@
     </parent>
 
     <properties>
-        <couchbase>3.2.6</couchbase>
-        <couchbase.osgi>3.2.6</couchbase.osgi>
+        <couchbase>3.2.7</couchbase>
+        <couchbase.osgi>3.2.7</couchbase.osgi>
         <springdata.commons>2.6.5-SNAPSHOT</springdata.commons>
         <java-module-name>spring.data.couchbase</java-module-name>
     </properties>