Remove deprecated usage of project in wrapper

build.gradle

@@ -385,6 +385,7 @@ tasks.register("branchConsistency") {
 
 tasks.named("wrapper").configure {
   distributionType = 'ALL'
+  def layout = project.layout
   doLast {
     // copy wrapper properties file to build-tools-internal to allow seamless idea integration
     def file = new File("build-tools-internal/gradle/wrapper/gradle-wrapper.properties")
@@ -395,7 +396,7 @@ tasks.named("wrapper").configure {
 
     // Update build-tools to reflect the Gradle upgrade
     // TODO: we can remove this once we have tests to make sure older versions work.
-    project.file('build-tools-internal/src/main/resources/minimumGradleVersion').text = gradleVersion
+    layout.file('build-tools-internal/src/main/resources/minimumGradleVersion').text = gradleVersion
     println "Updated minimum Gradle Version"
   }
 }