Build: Bump app version to 4.0.2.0 in manifest

Updated the Package.appxmanifest to reflect the new application version 4.0.2.0.

Author: yaira2

src/Files.App (Package)/Package.appxmanifest

@@ -16,7 +16,7 @@
     <Identity
         Name="FilesDev"
         Publisher="CN=Files"
-        Version="4.0.1.0" />
+        Version="4.0.2.0" />
 
     <Properties>
         <DisplayName>Files - Dev</DisplayName>