Removed deprecated features

Author: danny

macless_haystack/android/build.gradle

@@ -6,7 +6,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.6.0'
+        classpath 'com.android.tools.build:gradle:8.6.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
@@ -18,14 +18,14 @@ allprojects {
     }
 }
 
-rootProject.buildDir = '../build'
+rootProject.layout.buildDirectory = '../build'
 subprojects {
-    project.buildDir = "${rootProject.buildDir}/${project.name}"
+    project.layout.buildDirectory = "${rootProject.layout.buildDirectory}/${project.name}"
 }
 subprojects {
     project.evaluationDependsOn(':app')
 }
 
 tasks.register("clean", Delete) {
-    delete rootProject.buildDir
+    delete rootProject.layout.buildDirectory
 }