Update dependency org.springframework.boot:spring-boot-starter-actuator to v3.4.5

Author: renovate[bot]

build.gradle

@@ -65,7 +65,7 @@ dependencies {
 
     // monitoring
     implementation 'io.micronaut.micrometer:micronaut-micrometer-registry-prometheus:5.8.0'
-    implementation 'org.springframework.boot:spring-boot-starter-actuator:3.3.4'
+    implementation 'org.springframework.boot:spring-boot-starter-actuator:3.4.5'
 
      // springdoc
     implementation "org.springdoc:springdoc-openapi-starter-webmvc-ui:${springDocVersion}"