gradle: update to 8.6 (#405)

android/build.gradle

@@ -11,7 +11,7 @@ buildscript {
         }
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:8.1.4"
+        classpath 'com.android.tools.build:gradle:8.4.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"
         classpath("com.ncorti.ktfmt.gradle:plugin:0.17.0")

android/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionSha256Sum=38f66cd6eef217b4c35855bb11ea4e9fbc53594ccccb5fb82dfd317ef8c2c5a3
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+distributionSha256Sum=9631d53cf3e74bfa726893aee1f8994fee4e060c401335946dba2156f440f24c
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists