.github: update fuchsia code owners

Author: glpesk

.github/CODEOWNERS

@@ -1,7 +1,7 @@
 # For reference see:
 # https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners
 
-*fuchsia*	@mvanotti @noncombatant @glpesk @eepeep @corkamig
+*fuchsia*	@mvanotti @glpesk @eepeep @bmberger
 *freebsd*	@markjdb @tuexen
 *netbsd*	@krytarowski @R3x
 *openbsd*	@blackgnezdo @mptre