Update mapstruct monorepo to v1.6.0 (#497)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

build.gradle

@@ -406,7 +406,7 @@ dependencies {
   implementation 'org.zalando:problem-spring-web-starter:0.29.1'
   implementation 'org.apache.commons:commons-collections4:4.4'
 
-  implementation 'org.mapstruct:mapstruct:1.5.5.Final'
+  implementation 'org.mapstruct:mapstruct:1.6.0'
   implementation 'org.openapitools:jackson-databind-nullable:0.2.6'
   implementation group: 'org.apache.xmlbeans', name: 'xmlbeans', version: '5.2.1'
 
@@ -423,7 +423,7 @@ dependencies {
   implementation project(path: ':context')
   implementation 'javax.annotation:javax.annotation-api:1.3.2'
 
-  annotationProcessor 'org.mapstruct:mapstruct-processor:1.5.5.Final'
+  annotationProcessor 'org.mapstruct:mapstruct-processor:1.6.0'
 
   testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine'
   testImplementation(platform('org.junit:junit-bom:5.11.0'))