update version numbers

Author: jvde-github

app/build.gradle

@@ -10,8 +10,8 @@ android {
         applicationId "com.jvdegithub.aiscatcher"
         minSdk 22
         targetSdk 32
-        versionCode 20
-        versionName '0.20'
+        versionCode 21
+        versionName '0.21'
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         externalNativeBuild {

app/src/main/jni/JNI/AIScatcherNDK.cpp

@@ -268,7 +268,7 @@ Java_com_jvdegithub_aiscatcher_AisCatcherJava_InitNative(JNIEnv *env, jclass ins
     javaVersion = env->GetVersion();
     javaClass = (jclass) env->NewGlobalRef(instance);
 
-    callbackConsole(env, "AIS-Catcher " VERSION "-20\n");
+    callbackConsole(env, "AIS-Catcher " VERSION "-21\n");
     memset(&statistics, 0, sizeof(statistics));
 
     return 0;