Increase Gradle version to 7.1.3

lib_log/build.gradle

@@ -1,5 +1,9 @@
 apply from: rootProject.file("library.gradle")
 
+android {
+    namespace 'no.nordicsemi.android.logger'
+}
+
 dependencies {
     implementation libs.nordic.log
 }

lib_log/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="no.nordicsemi.android.logger">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <uses-permission android:name="no.nordicsemi.android.LOG"/>