bump server version to 28.0.0.2 to trigger new migration step

Signed-off-by: Julien Veyssier <julien-nc@posteo.net>

version.php

@@ -30,7 +30,7 @@
 // between betas, final and RCs. This is _not_ the public version number. Reset minor/patch level
 // when updating major/minor version number.
 
-$OC_Version = [28, 0, 0, 1];
+$OC_Version = [28, 0, 0, 2];
 
 // The human-readable string
 $OC_VersionString = '28.0.0 dev';