DEVELOPERS: upgrade Andreas Ziegler's email address

The old one lasted for 10 years, lately spam
levels reached a rather uncomfortable level ...

Signed-off-by: Andreas Ziegler <br015@umbiko.net>
Signed-off-by: Julien Olivain <ju.o@free.fr>

DEVELOPERS

@@ -187,7 +187,7 @@ F:	package/pkg-qmake.mk
 F:	package/qt5/qt5opcua/
 F:	package/qt6/qt6opcua/
 
-N:	Andreas Ziegler <br015@umbiko.net>
+N:	Andreas Ziegler <br025@umbiko.net>
 F:	package/mpd/
 
 N:	Andrey Smirnov <andrew.smirnov@gmail.com>