Merge pull request #5406 from Kazuki Shimizu

* gh-5406:
  Upgrade to Lombok 1.16.8

spring-boot-dependencies/pom.xml

@@ -117,7 +117,7 @@
 		<liquibase.version>3.4.2</liquibase.version>
 		<log4j2.version>2.5</log4j2.version>
 		<logback.version>1.1.6</logback.version>
-		<lombok.version>1.16.6</lombok.version>
+		<lombok.version>1.16.8</lombok.version>
 		<mariadb.version>1.3.6</mariadb.version>
 		<mockito.version>1.10.19</mockito.version>
 		<mongodb.version>2.14.1</mongodb.version>