Update info.xml

raised max version number to 28

Author: memurats

appinfo/info.xml

@@ -11,7 +11,7 @@
 	<category>customization</category>
 
 	<dependencies>
-		<nextcloud min-version="17" max-version="27" />
+		<nextcloud min-version="17" max-version="28" />
 	</dependencies>
 
 	<types>