Fix plugin descriptor generation to use gradlePlugin DSL

Author: ryanjbaxter

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

@@ -50,6 +50,19 @@ group = 'org.springframework.cloud'
 sourceCompatibility = 17
 targetCompatibility = 17
 
+gradlePlugin {
+	plugins {
+		springCloudContractPlugin {
+			id = 'org.springframework.cloud.contract'
+			implementationClass = 'org.springframework.cloud.contract.verifier.plugin.SpringCloudContractVerifierGradlePlugin'
+		}
+		springCloudContractPluginAlias {
+			id = 'spring-cloud-contract'
+			implementationClass = 'org.springframework.cloud.contract.verifier.plugin.SpringCloudContractVerifierGradlePlugin'
+		}
+	}
+}
+
 repositories {
 	mavenLocal()
 	mavenCentral()

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

@@ -62,11 +62,14 @@ if (isReleaseToCentral) {
 
 		plugins {
 			springCloudContractPlugin {
-				id = 'org.springframework.cloud.contract'
-				displayName = 'spring-cloud-contract'
+				displayName = 'Spring Cloud Contract Gradle Plugin'
+				description = 'Spring Cloud Contract Gradle Plugin'
+				tags.set(['spring', 'spring-framework', 'spring-cloud', 'spring-cloud-contract'])
+			}
+			springCloudContractPluginAlias {
+				displayName = 'Spring Cloud Contract Gradle Plugin (Alias)'
 				description = 'Spring Cloud Contract Gradle Plugin'
 				tags.set(['spring', 'spring-framework', 'spring-cloud', 'spring-cloud-contract'])
-				implementationClass = 'org.springframework.cloud.contract.verifier.plugin.SpringCloudContractVerifierGradlePlugin'
 			}
 		}
 	}