Set group id before release.gradle is applies

Author: ryanjbaxter

spring-cloud-contract-tools/spring-cloud-contract-gradle-plugin/build.gradle

@@ -24,14 +24,14 @@ ext {
 }
 
 project.version = findProperty('verifierVersion')
+group = 'org.springframework.cloud'
+
 apply plugin: 'groovy'
 apply plugin: 'java'
 apply plugin: "java-gradle-plugin"
 apply from: "$rootDir/gradle/release.gradle"
 //apply plugin: "jacoco"
 
-group = 'org.springframework.cloud'
-
 gradlePlugin {
 	plugins {
 		springCloudContractPlugin {