refact: flutter 3.24.4 (#9874)

Signed-off-by: fufesou <linlong1266@gmail.com>

flutter/android/build.gradle

@@ -1,18 +1,3 @@
-buildscript {
-    ext.kotlin_version = '1.9.10'
-    repositories {
-        google()
-        jcenter()
-        maven { url 'https://jitpack.io' }
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:7.0.0'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath 'com.google.gms:google-services:4.3.14'
-    }
-}
-
 allprojects {
     repositories {
         google()
@@ -24,6 +9,8 @@ allprojects {
 rootProject.buildDir = '../build'
 subprojects {
     project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
     project.evaluationDependsOn(':app')
 }