fix: Remove manifestPlaceholders from SDK (#22)

* chore: Remove manifestPlaceholders from SDK

* chore: Prepare for next release

Author: OS-pedrogustavobilro

OneSignalSDK/onesignal/build.gradle

@@ -3,13 +3,6 @@ android {
     compileSdk 34
     namespace "com.onesignal"
     defaultConfig {
-        // Normally we shouldn't need to redefine manifestPlaceholders for our onesignal project
-        //   but Android Studio gets a sync error if these are not here.
-        //      - /gradlew onesignal:assembleRelease is fine from the console.
-        // We can't use static values are these are directly added to the AndroidManifest.xml in the .aar file.
-        manifestPlaceholders = [onesignal_app_id: '${onesignal_app_id}',
-                                // Project number pulled from dashboard, local value is ignored
-                                onesignal_google_project_number: '${onesignal_google_project_number}']
         minSdkVersion 26
         targetSdk 34
         consumerProguardFiles 'consumer-proguard-rules.pro'

pom.xml

@@ -7,5 +7,5 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.github.outsystems</groupId>
     <artifactId>onesignal-android-sdk</artifactId>
-    <version>3.15.5-OS5</version>
+    <version>3.15.5-OS6</version>
 </project>