Upgrade to Couchbase Client 2.7.18

Closes gh-24351

Author: snicoll

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -52,7 +52,7 @@
 		<commons-lang3.version>3.9</commons-lang3.version>
 		<commons-pool.version>1.6</commons-pool.version>
 		<commons-pool2.version>2.7.0</commons-pool2.version>
-		<couchbase-client.version>2.7.16</couchbase-client.version>
+		<couchbase-client.version>2.7.18</couchbase-client.version>
 		<couchbase-cache-client.version>2.1.0</couchbase-cache-client.version>
 		<dependency-management-plugin.version>1.0.10.RELEASE</dependency-management-plugin.version>
 		<db2-jdbc.version>11.5.4.0</db2-jdbc.version>