Increase spring boot version (#846)

Author: vladokrsymphony

symphony-bdk-bom/build.gradle

@@ -16,7 +16,7 @@ repositories {
 
 dependencies {
     // import Spring Boot's BOM
-    api platform('org.springframework.boot:spring-boot-dependencies:3.5.6')
+    api platform('org.springframework.boot:spring-boot-dependencies:3.5.8')
     // import Jackson's BOM
     api platform('com.fasterxml.jackson:jackson-bom:2.18.2')
     // import Jersey's BOM