Use Spring Boot 3 for session management samples

servlet/spring-boot/java/session-management/maximum-sessions-prevent-login/build.gradle

@@ -1,14 +1,10 @@
 plugins {
 	id 'java'
-	id 'org.springframework.boot' version '2.7.7'
+	id 'org.springframework.boot' version '3.0.2'
 	id 'io.spring.dependency-management' version '1.0.15.RELEASE'
 	id "nebula.integtest" version "8.2.0"
 }
 
-group = 'com.example'
-version = '0.0.1-SNAPSHOT'
-sourceCompatibility = '11'
-
 repositories {
 	mavenCentral()
 }

servlet/spring-boot/java/session-management/maximum-sessions-prevent-login/gradle.properties

@@ -1 +0,0 @@
-spring-security.version=5.8.1

servlet/spring-boot/java/session-management/maximum-sessions/build.gradle

@@ -1,14 +1,10 @@
 plugins {
 	id 'java'
-	id 'org.springframework.boot' version '2.7.7'
+	id 'org.springframework.boot' version '3.0.2'
 	id 'io.spring.dependency-management' version '1.0.15.RELEASE'
 	id "nebula.integtest" version "8.2.0"
 }
 
-group = 'com.example'
-version = '0.0.1-SNAPSHOT'
-sourceCompatibility = '11'
-
 repositories {
 	mavenCentral()
 }

servlet/spring-boot/java/session-management/maximum-sessions/gradle.properties

@@ -1 +0,0 @@
-spring-security.version=5.8.1