Upgrade to Maven Checkstyle Plugin 3.0.0

Closes spring-projectsgh-11775

Author: rajadilipkolli

spring-boot-project/spring-boot-parent/pom.xml

@@ -304,7 +304,7 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-checkstyle-plugin</artifactId>
-					<version>2.17</version>
+					<version>3.0.0</version>
 					<dependencies>
 						<dependency>
 							<groupId>com.puppycrawl.tools</groupId>