Bump matrix testing plugin to 3.1.0 (prep for Gradle 7)

documentation/documentation.gradle

@@ -31,7 +31,7 @@ projectsToIncludeInAggregatedJavadoc.each {projectPath ->
 
 apply from: rootProject.file( 'gradle/java-module.gradle' )
 apply plugin: 'org.asciidoctor.convert'
-apply plugin: 'hibernate-matrix-testing'
+apply plugin: 'org.hibernate.matrix-test'
 
 tasks.build.dependsOn 'buildDocs'
 defaultTasks 'buildDocs'

hibernate-core/hibernate-core.gradle

@@ -14,7 +14,7 @@ description = 'Hibernate\'s core ORM functionality'
 
 apply from: rootProject.file( 'gradle/published-java-module.gradle' )
 apply plugin: 'org.hibernate.orm.antlr'
-apply plugin: 'hibernate-matrix-testing'
+apply plugin: 'org.hibernate.matrix-test'
 
 ext {
     jaxbTargetDir = file( "${buildDir}/generated-src/jaxb/main" )

hibernate-envers/hibernate-envers.gradle

@@ -8,7 +8,7 @@
 description = 'Hibernate\'s entity version (audit/history) support'
 
 apply from: rootProject.file( 'gradle/published-java-module.gradle' )
-apply plugin: 'hibernate-matrix-testing'
+apply plugin: 'org.hibernate.matrix-test'
 
 dependencies {
     api( project( ':hibernate-core' ) ) {

hibernate-spatial/hibernate-spatial.gradle

@@ -10,7 +10,7 @@ import org.apache.tools.ant.filters.ReplaceTokens
 description = 'Integrate support for Spatial/GIS data into Hibernate O/RM'
 
 apply from: rootProject.file( 'gradle/published-java-module.gradle' )
-apply plugin: 'hibernate-matrix-testing'
+apply plugin: 'org.hibernate.matrix-test'
 
 
 dependencies {