Bump org.projectlombok:lombok in /plugins/gradle/example-server

Bumps [org.projectlombok:lombok](https://github.com/projectlombok/lombok) from 1.18.30 to 1.18.42.
- [Changelog](https://github.com/projectlombok/lombok/blob/master/doc/changelog.markdown)
- [Commits](projectlombok/lombok@v1.18.30...v1.18.42)

---
updated-dependencies:
- dependency-name: org.projectlombok:lombok
  dependency-version: 1.18.42
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

plugins/gradle/example-server/build.gradle

@@ -21,8 +21,8 @@ dependencies {
 
     implementation "javax.validation:validation-api:2.0.1.Final"
 
-    compileOnly "org.projectlombok:lombok:1.18.30"
-    annotationProcessor "org.projectlombok:lombok:1.18.30"
+    compileOnly "org.projectlombok:lombok:1.18.42"
+    annotationProcessor "org.projectlombok:lombok:1.18.42"
 
     implementation 'org.projectlombok:lombok-mapstruct-binding:0.2.0'