Skip the Gradle plugin when building with the full profile and JDK 10

See gh-12028

spring-boot-project/spring-boot-tools/spring-boot-gradle-plugin/pom.xml

@@ -186,6 +186,9 @@
 								<version>3.2.10</version>
 							</dependency>
 						</dependencies>
+						<configuration>
+							<skip>${skip.gradle.build}</skip>
+						</configuration>
 						<executions>
 							<execution>
 								<id>set-up-maven-properties</id>
@@ -298,6 +301,7 @@
 											<classifier>docs</classifier>
 										</artifact>
 									</artifacts>
+									<skipAttach>${skip.gradle.build}</skipAttach>
 								</configuration>
 							</execution>
 						</executions>