Update dependency de.codecentric:spring-boot-admin-starter-client to v3.4.0

Author: renovate[bot]

build.gradle

@@ -92,7 +92,7 @@ dependencies {
     implementation "edu.kit.datamanager:service-base:1.3.2"
 
     // actuator
-    implementation 'de.codecentric:spring-boot-admin-starter-client:3.3.6'
+    implementation 'de.codecentric:spring-boot-admin-starter-client:3.4.0'
 
     runtimeOnly    'org.apache.httpcomponents:httpclient:4.5.14'