MAINTAINERS: Update Coly Li's email address

I switch to colyli@fygo.io as my current email address.

Signed-off-by: Coly Li <colyli@fygo.io>
Link: https://patch.msgid.link/20260613150458.682707-1-colyli@fygo.io
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Author: Coly Li

MAINTAINERS

@@ -4440,7 +4440,7 @@ F:	include/uapi/linux/batman_adv.h
 F:	net/batman-adv/
 
 BCACHE (BLOCK LAYER CACHE)
-M:	Coly Li <colyli@fnnas.com>
+M:	Coly Li <colyli@fygo.io>
 M:	Kent Overstreet <kent.overstreet@linux.dev>
 L:	linux-bcache@vger.kernel.org
 S:	Maintained