fix(deps): update spring boot to v3.5.8

Author: renovate[bot]

gradle/templates.versions.toml

@@ -66,10 +66,10 @@ slf4j-simple-logger = "2.0.0"
 zeebe-micronaut-client = "1.20.0"
 ktor = "2.3.13"
 jakarta-validation-api = "3.1.1"
-spring-boot-gradle-plugin = "3.5.7"
+spring-boot-gradle-plugin = "3.5.8"
 spring-dependency-management-plugin = "1.1.7"
 micronaut-starter-aws-cdk = "4.10.3"
-spring-boot-starter-parent="3.5.7"
+spring-boot-starter-parent="3.5.8"
 graaljs = "24.2.2"  # On upgrade, please check if Loom/Truffle interop is still experimental.
 frontend-maven-plugin = "1.15.1"
 liquibase-slf4j = "5.1.0"