Move deprecated package in manifest to namespace declaration

app/build.gradle

@@ -4,6 +4,7 @@ plugins {
 apply plugin: 'com.android.application'
 
 android {
+    namespace "com.github.gotify"
     compileSdk 33
     defaultConfig {
         applicationId "com.github.gotify"

app/src/main/AndroidManifest.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.github.gotify">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />