Update android gradle plugin to 9.0

gradle.properties

@@ -23,3 +23,6 @@ org.gradle.unsafe.configuration-cache=true
 # TODO Renable on day (check that Retrofit, Jackson, and Imageloader are working)
 android.enableR8.fullMode=true
 
+android.builtInKotlin=false
+android.newDsl=false
+

gradle/libs.versions.toml

@@ -3,7 +3,7 @@
 gradle                 = "9.3.0"
 
 navigation             = "2.9.6"
-gradlePlugin           = "8.13.2"
+gradlePlugin           = "9.0.0"
 androidxcar            = "1.7.0"
 androidxcore           = "1.17.0"
 ktlint                 = "1.0.1"

ultrasonic/build.gradle

@@ -25,7 +25,7 @@ android {
     buildTypes {
         release {
             minifyEnabled true
-            proguardFiles getDefaultProguardFile('proguard-android.txt'),
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'),
                     'minify/proguard-main.pro',
                     'minify/proguard-okhttp.pro',
                     'minify/proguard-retrofit.pro',