Update Spring Boot to 3.5.9 and Undertow dependencies to 2.3.21

Author: jreynard-code

build.gradle.kts

@@ -31,7 +31,7 @@ plugins {
   kotlin("plugin.spring") version kotlinVersion apply false
   id("pl.allegro.tech.build.axion-release") version "1.21.1"
   id("com.diffplug.spotless") version "8.1.0"
-  id("org.springframework.boot") version "3.5.8" apply false
+  id("org.springframework.boot") version "3.5.9" apply false
   id("project-report")
   id("org.owasp.dependencycheck") version "12.1.9"
   id("com.github.jk1.dependency-license-report") version "3.0.1"
@@ -72,6 +72,7 @@ val testContainersPostgreSQLVersion = "1.21.3"
 val testContainersLocalStackVersion = "1.21.3"
 val commonCompressVersion = "1.28.0"
 val awsSpringVersion = "3.4.2"
+val undertowVersion = "2.3.21.Final"
 
 // Checks
 val detektVersion = "1.23.8"
@@ -299,7 +300,9 @@ subprojects {
     implementation("org.springframework.boot:spring-boot-starter-undertow") {
       constraints {
         implementation("org.jboss.xnio:xnio-api:3.8.17.Final")
-        implementation("io.undertow:undertow-core:2.3.20.Final")
+        implementation("io.undertow:undertow-core:$undertowVersion")
+        implementation("io.undertow:undertow-servlet:$undertowVersion")
+        implementation("io.undertow:undertow-websockets-jsr:$undertowVersion")
       }
     }
     implementation("com.fasterxml.jackson.module:jackson-module-kotlin:$jacksonModuleKotlinVersion")