Update gradle

Author: stefan-ka

build.gradle

@@ -1,6 +1,6 @@
 plugins {
   id "java"
-  id "org.xtext.builder" version "3.0.2"
+  id "org.xtext.builder" version "4.0.0"
 }
 
 group 'org.contextmapper.dsl'
@@ -10,7 +10,7 @@ sourceCompatibility = '11'
 targetCompatibility = '11'
 
 repositories {
-    jcenter()
+    mavenCentral()
 }
 
 dependencies {
@@ -26,7 +26,7 @@ dependencies {
 xtext {
     languages {
         cml {
-            fileExtension = 'cml'
+            fileExtensions = [ 'cml' ]
             setup = 'org.contextmapper.dsl.ContextMappingDSLStandaloneSetup'
             generator.outlet.producesJava = true
         }

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 #Thu Oct 10 14:46:22 CEST 2019
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14-all.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists