Bump agp to 8.5.2

Also:
* Enables gradle plugin lint check.
* Documents gradle dependency lint check.
* Removes experimental lint configuration.

Author: albin-mullvad

android/config/lint.xml

@@ -7,9 +7,8 @@
     <issue id="UnusedResources">
         <ignore path="res/values/strings.xml" />
     </issue>
-    <!-- We are currently not using the ellipsis character -->
+    <!-- We are currently not using the ellipsis character. -->
     <issue id="TypographyEllipsis" severity="ignore" />
-    <!-- Temporarily ignore the below checks while migrating to version catalogs. -->
+    <!-- Ignore since we currently treat warnings as errors. -->
     <issue id="GradleDependency" severity="ignore" />
-    <issue id="AndroidGradlePluginVersion" severity="ignore" />
 </lint>

android/gradle.properties

@@ -3,4 +3,3 @@ android.nonTransitiveRClass=false
 android.useAndroidX=true
 kotlin.code.style=official
 org.gradle.jvmargs=-Xmx8192M -Dkotlin.daemon.jvm.options\="-Xmx8192M"
-android.experimental.lint.version = 8.4.0

android/gradle/libs.versions.toml

@@ -3,8 +3,8 @@
 # The android-gradle-aapt plugin version must be in sync with the android plugin version.
 # Required for Gradle metadata verification to work properly, see:
 # https://github.com/gradle/gradle/issues/19228
-android-gradle-plugin = "8.3.0"
-android-gradle-aapt = "10880808"
+android-gradle-plugin = "8.5.2"
+android-gradle-aapt = "11315950"
 android-billingclient = "6.2.0"
 android-volley = "1.2.1"