Upgrade to Spring Framework 6.2.11

Closes gh-1306

Author: bclozel

build.gradle

@@ -2,9 +2,9 @@ description = "Spring for GraphQL"
 
 ext {
 	moduleProjects = [project(":spring-graphql"), project(":spring-graphql-test")]
-	springFrameworkVersion = "6.2.8"
+	springFrameworkVersion = "6.2.11"
 	graphQlJavaVersion = "24.1"
-	springBootVersion = "3.4.3"
+	springBootVersion = "3.4.9"
 }
 
 subprojects {