Update dependency org.mockito:mockito-junit-jupiter to v5.21.0

Author: renovate[bot]

build.gradle

@@ -204,7 +204,7 @@ dependencies {
 
   testImplementation group: 'org.springframework.boot', name: 'spring-boot-starter-test'
 
-  testImplementation group: 'org.mockito', name: 'mockito-junit-jupiter', version: '5.19.0'
+  testImplementation group: 'org.mockito', name: 'mockito-junit-jupiter', version: '5.21.0'
   testImplementation group: 'org.mockito', name: 'mockito-inline', version: '5.2.0'
   testImplementation group: 'org.awaitility', name: 'awaitility', version: '4.3.0'
   testImplementation group: 'org.apiguardian', name: 'apiguardian-api', version: '1.1.2'