CLI: pin the Android template to AGP 8.13.0 on Gradle 8.13

The generated project shipped AGP 8.7.0 against the Gradle 8.13 wrapper,
a pair Gradle 9.1.0 does not accept: AGP 8.7 predates Gradle 9 and its
configuration fails outright. Move both to the newest matched pair that
AGP documents (8.13.0 requires Gradle 8.13+), which is also the first
AGP that builds cleanly against compileSdk 36.

Kotlin stays at 2.0.20 deliberately: the template's app build script
still uses the removed `kotlinOptions` block, so a KGP 2.2.x bump needs
that rewritten first.

packages/cli/assets/android/gen/build.gradle.kts

@@ -4,7 +4,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath("com.android.tools.build:gradle:8.7.0")
+        classpath("com.android.tools.build:gradle:8.13.0")
         classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:2.0.20")
     }
 }

packages/cli/assets/android/gen/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME