chore(deps): upgrade Gradle to 9.6.1, Kotlin to 2.4.0, lifecycle to 2.11.0

AGP stays at 9.2.1 (already the latest stable). Verified with a full
debug APK build against a freshly bound gobackend.aar.

android/app/build.gradle.kts

@@ -123,7 +123,7 @@ dependencies {
     implementation(fileTree(mapOf("dir" to "libs", "include" to listOf("*.jar", "*.aar"))))
     
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:1.11.0")
-    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.11.0-beta02")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.11.0")
     implementation("androidx.documentfile:documentfile:1.1.0")
     implementation("androidx.activity:activity-ktx:1.13.0")
     implementation("com.antonkarpenko:ffmpeg-kit-full:2.1.0")

android/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.5.0-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.6.1-all.zip
 networkTimeout=10000
 retries=0
 retryBackOffMs=500

android/settings.gradle.kts

@@ -20,7 +20,7 @@ pluginManagement {
 plugins {
     id("dev.flutter.flutter-plugin-loader") version "1.0.0"
     id("com.android.application") version "9.2.1" apply false
-    id("org.jetbrains.kotlin.android") version "2.3.21" apply false
+    id("org.jetbrains.kotlin.android") version "2.4.0" apply false
 }
 
 include(":app")