dataconnect: demo: upgrade Android Gradle Plugin to 8.11.0 (was 8.10.1) and Gradle wrapper to 8.13 (was 8.11.1) (#7079)

Author: dconeybe

firebase-dataconnect/demo/build.gradle.kts

@@ -22,7 +22,7 @@ plugins {
   // The versions shown here were the latest versions as of June 10, 2025.
   // Note, however, that the version of kotlin("plugin.serialization") _must_,
   // in general, match the version of kotlin("android").
-  id("com.android.application") version "8.10.1"
+  id("com.android.application") version "8.11.0"
   id("com.google.gms.google-services") version "4.4.2"
   val kotlinVersion = "2.1.10"
   kotlin("android") version kotlinVersion

firebase-dataconnect/demo/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME