Replace deprecated stabilityConfigurationFile with stabilityConfigurationFiles

https://kotlinlang.org/api/kotlin-gradle-plugin/compose-compiler-gradle-plugin/org.jetbrains.kotlin.compose.compiler.gradle/-compose-compiler-gradle-plugin-extension/stability-configuration-file.html

Author: SimonMarquis

build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/AndroidCompose.kt

@@ -67,7 +67,7 @@ internal fun Project.configureAndroidCompose(
             .relativeToRootProject("compose-reports")
             .let(reportsDestination::set)
 
-        stabilityConfigurationFile =
-            isolated.rootProject.projectDirectory.file("compose_compiler_config.conf")
+        stabilityConfigurationFiles
+            .add(isolated.rootProject.projectDirectory.file("compose_compiler_config.conf"))
     }
 }