Upgrade to Checkstyle 8.20 and CGLIB 3.2.11

Includes dependency management plugin 1.0.7.

build.gradle

@@ -10,7 +10,7 @@ buildscript {
 
 // 3rd party plugin repositories can be configured in settings.gradle
 plugins {
-	id "io.spring.dependency-management" version "1.0.5.RELEASE" apply false
+	id "io.spring.dependency-management" version "1.0.7.RELEASE" apply false
 	id "org.jetbrains.kotlin.jvm" version "1.2.71" apply false
 	id "org.jetbrains.dokka" version "0.9.17"
 	id "org.asciidoctor.convert" version "1.5.8"
@@ -143,7 +143,7 @@ configure(allprojects) { project ->
 	}
 
 	checkstyle {
-		toolVersion = "8.19"
+		toolVersion = "8.20"
 		configDir = rootProject.file("src/checkstyle")
 	}
 

spring-core/spring-core.gradle

@@ -10,7 +10,7 @@ dependencyManagement {
 // spring-core includes asm and repackages cglib, inlining both into the spring-core jar.
 // cglib itself depends on asm and is therefore further transformed by the JarJar task to
 // depend on org.springframework.asm; this avoids including two different copies of asm.
-def cglibVersion = "3.2.10"
+def cglibVersion = "3.2.11"
 def objenesisVersion = "3.0.1"
 
 configurations {