fix(deps): update android.gradle.plugin to v9 (major) (#6021)

* Update android.gradle.plugin to v9

* Separate extensions between app and library ones

`CommonExtension` has been split and its properties are now duplicated in `ApplicationExtension` and `LibraryExtension` without a shared interface, so we now need to duplicate the helper extension functions

* Bump Gradle wrapper to `9.3.1`

* Remove `kotlin-android` plugin usage: it's no longer needed

* Enable `resValues` build feature for the modules that have resources in custom variants like gplay, debug, etc.

Otherwise this now fails saying the resources are there but the feature is disabled

* Remove `retrofit` dependency from `:features:call:impl`

It wasn't in use and the build was failing

* Update kotlin to v2.4.0

* Update plugin paparazzi to v2.0.0-alpha05

* Update gradle wrapper to 9.5.1

./gradlew wrapper --gradle-version 9.5.1 --gradle-distribution-sha256-sum bafc141b619ad6350fd975fc903156dd5c151998cc8b058e8c1044ab5f7b031f

* Update com.android.tools.build:gradle to 9.2.1

* Update plugin sonarqube to v7.3.1.8318

* Kotlin 2.4.0

* Context parameters are enabled by default in Kotlin 2.4.0

* Fix code issue

* Fix record screenshot issue

* Workaround for https://github.com/cashapp/paparazzi/issues/2342

* Workaround for another issue with Paparazzi

* Remove unused import

* Update screenshots

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Jorge Martín <jorgem@element.io>
Co-authored-by: Benoit Marty <benoitm@element.io>
Co-authored-by: Benoit Marty <benoit@matrix.org>
Co-authored-by: ElementBot <android@element.io>

tests/uitests/src/test/kotlin/ui/LayoutLibErrorFilterStatement.kt

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package ui
+
+import org.junit.rules.TestRule
+import org.junit.runner.Description
+import org.junit.runners.model.Statement
+
+/**
+ * Workaround for Paparazzi 2.0.0-alpha05 / LayoutLib 16.2.1 bug where
+ * HandlerThread_Delegate calls Thread.setPosixNicenessInternal which doesn't exist on JVM.
+ * Tracked in https://github.com/cashapp/paparazzi/issues/2342 — fixed in layoutlib 16.2.3.
+ * Remove this workaround once Paparazzi ships with layoutlib >= 16.2.3.
+ *
+ * Paparazzi's PaparazziLogger collects background thread errors and re-throws them via
+ * assertNoErrors(). This Statement wrapper catches the known NoSuchMethodError so the test
+ * can pass despite the LayoutLib bug.
+ */
+class LayoutLibErrorFilterStatement : TestRule {
+    override fun apply(base: Statement, description: Description): Statement {
+        return object : Statement() {
+            @Throws(Throwable::class)
+            override fun evaluate() {
+                try {
+                    base.evaluate()
+                } catch (e: NoSuchMethodError) {
+                    if (e.message?.contains("setPosixNicenessInternal") != true) throw e
+                } catch (npe: NullPointerException) {
+                    // Also catch this error on `HorizontalFloatingToolbarPreview` and `HorizontalFloatingToolbarNoFabPreview`
+                    if (npe.message?.contains("""Cannot invoke "java.util.ArrayList.size()" because "childrenList" is null""") != true) throw npe
+                }
+            }
+        }
+    }
+}

tests/uitests/src/test/kotlin/ui/PreviewA11yTest.kt

@@ -29,7 +29,10 @@ class PreviewA11yTest(
     @TestParameter(valuesProvider = ComposableA11yPreviewProvider::class)
     val preview: ComposablePreview<AndroidPreviewInfo>,
 ) {
-    @get:Rule
+    @get:Rule(order = 0)
+    val layoutLibErrorFilterStatement = LayoutLibErrorFilterStatement()
+
+    @get:Rule(order = 1)
     val paparazziRule = PaparazziPreviewRule.createFor(
         preview = preview,
         locale = "en",

tests/uitests/src/test/kotlin/ui/PreviewShard1Test.kt

@@ -28,7 +28,10 @@ class PreviewShard1Test(
     @TestParameter(valuesProvider = Shard1ComposablePreviewProvider::class)
     val preview: ComposablePreview<AndroidPreviewInfo>,
 ) {
-    @get:Rule
+    @get:Rule(order = 0)
+    val layoutLibErrorFilterStatement = LayoutLibErrorFilterStatement()
+
+    @get:Rule(order = 1)
     val paparazziRule = PaparazziPreviewRule.createFor(preview, locale = "en")
 
     @Test

tests/uitests/src/test/kotlin/ui/PreviewShard2Test.kt

@@ -28,7 +28,10 @@ class PreviewShard2Test(
     @TestParameter(valuesProvider = Shard2ComposablePreviewProvider::class)
     val preview: ComposablePreview<AndroidPreviewInfo>,
 ) {
-    @get:Rule
+    @get:Rule(order = 0)
+    val layoutLibErrorFilterStatement = LayoutLibErrorFilterStatement()
+
+    @get:Rule(order = 1)
     val paparazziRule = PaparazziPreviewRule.createFor(preview, locale = "en")
 
     @Test

tests/uitests/src/test/kotlin/ui/PreviewShard3Test.kt

@@ -28,7 +28,10 @@ class PreviewShard3Test(
     @TestParameter(valuesProvider = Shard3ComposablePreviewProvider::class)
     val preview: ComposablePreview<AndroidPreviewInfo>,
 ) {
-    @get:Rule
+    @get:Rule(order = 0)
+    val layoutLibErrorFilterStatement = LayoutLibErrorFilterStatement()
+
+    @get:Rule(order = 1)
     val paparazziRule = PaparazziPreviewRule.createFor(preview, locale = "en")
 
     @Test

tests/uitests/src/test/kotlin/ui/PreviewShard4Test.kt

@@ -28,7 +28,10 @@ class PreviewShard4Test(
     @TestParameter(valuesProvider = Shard4ComposablePreviewProvider::class)
     val preview: ComposablePreview<AndroidPreviewInfo>,
 ) {
-    @get:Rule
+    @get:Rule(order = 0)
+    val layoutLibErrorFilterStatement = LayoutLibErrorFilterStatement()
+
+    @get:Rule(order = 1)
     val paparazziRule = PaparazziPreviewRule.createFor(preview, locale = "en")
 
     @Test