Update plugin com.android.application to v9.4.1

.github/workflows/build.yml

@@ -48,7 +48,7 @@ jobs:
       - name: set up JDK
         uses: actions/setup-java@v6
         with:
-          java-version: 27
+          java-version: 21
           distribution: "temurin"
 
       - name: Setup Gradle

app/build.gradle

@@ -1,7 +1,7 @@
 plugins {
     id 'com.android.application'
-    id 'org.jetbrains.kotlin.plugin.serialization' version '2.4.21'
-    id 'org.jetbrains.kotlin.plugin.compose' version '2.4.21'
+    id 'org.jetbrains.kotlin.plugin.serialization' version '2.4.20'
+    id 'org.jetbrains.kotlin.plugin.compose' version '2.4.20'
 }
 
 android {
@@ -99,7 +99,7 @@ dependencies {
     implementation 'androidx.navigation:navigation-compose:2.10.2'
     coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs_nio:2.1.5'
 
-    implementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.13.0'
+    implementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.11.0'
 
     // QR codes for exchanging identities. Both Apache-2.0, no Play Services.
     implementation 'com.google.zxing:core:3.5.4'
@@ -107,7 +107,7 @@ dependencies {
 
     testImplementation 'junit:junit:4.13.2'
     testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.11.0'
-    testImplementation 'org.jetbrains.kotlin:kotlin-test-junit:2.4.21'
+    testImplementation 'org.jetbrains.kotlin:kotlin-test-junit:2.4.20'
 
     implementation 'androidx.compose.ui:ui'
     implementation "androidx.activity:activity-ktx:1.13.0"

build.gradle

@@ -1,6 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    id 'com.android.application' version '9.5.1' apply false
-    id 'com.android.library' version '9.5.1' apply false
-    id 'org.jetbrains.kotlin.android' version '2.4.21' apply false
+    id 'com.android.application' version '9.4.1' apply false
+    id 'com.android.library' version '9.3.3' apply false
+    id 'org.jetbrains.kotlin.android' version '2.4.20' apply false
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.9.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.8.0-bin.zip
 networkTimeout=10000
 retries=0
 retryBackOffMs=500