Updates AGP to 9.1.0, Gradle to 9.5.0, and JDK to 21.

Android/gradle.properties

@@ -6,14 +6,23 @@
 # http://www.gradle.org/docs/current/userguide/build_environment.html
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
-org.gradle.jvmargs=-Xmx2048m
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
 # When configured, Gradle will run in incubating parallel mode.
-# This option should only be used with decoupled projects. More details, visit
-# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# This option should only be used with decoupled projects. For more details, visit
+# https://developer.android.com/r/tools/gradle-multi-project-decoupled-projects
 # org.gradle.parallel=true
 # AndroidX package structure to make it clearer which packages are bundled with the
 # Android operating system, and which are packaged with your app"s APK
 # https://developer.android.com/topic/libraries/support-library/androidx-rn
 android.useAndroidX=true
 # Automatically convert third-party libraries to use AndroidX
-android.enableJetifier=true
+android.enableJetifier=false
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
+android.uniquePackageNames=false
+android.dependency.useConstraints=false
+android.javaCompile.suppressSourceTargetDeprecationWarning=true
+android.r8.strictFullModeForKeepRules=false
+org.gradle.configuration-cache=true